Finding the Third Proportional to 67,478,877,589.50 and 140,542,942,021.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,478,877,589.50 : 140,542,942,021.50 = 140,542,942,021.50 : x
2. Step 2: Convert to fraction form
   67,478,877,589.50/140,542,942,021.50 = 140,542,942,021.50/x
3. Step 3: Cross multiply
   67,478,877,589.50x = 140,542,942,021.50 × 140,542,942,021.50
4. Step 4: Simplify right side
   67,478,877,589.50x = 19,752,318,552,058,709,934,080
5. Step 5: Solve for x
   x = 19,752,318,552,058,709,934,080/67,478,877,589.50
6. Step 6: Final answer
   x = 292,718,540,344.13