Finding the Third Proportional to 1,385,158,058,498.20 and 2,978,777,641,747.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385,158,058,498.20 : 2,978,777,641,747.50 = 2,978,777,641,747.50 : x
2. Step 2: Convert to fraction form
   1,385,158,058,498.20/2,978,777,641,747.50 = 2,978,777,641,747.50/x
3. Step 3: Cross multiply
   1,385,158,058,498.20x = 2,978,777,641,747.50 × 2,978,777,641,747.50
4. Step 4: Simplify right side
   1,385,158,058,498.20x = 8,873,116,238,974,797,563,822,080
5. Step 5: Solve for x
   x = 8,873,116,238,974,797,563,822,080/1,385,158,058,498.20
6. Step 6: Final answer
   x = 6,405,851,075,649.16