Finding the Third Proportional to 12,905,727 and 28,087,392

Step by Step Solution

1. Step 1: Write the proportion equation
   12,905,727 : 28,087,392 = 28,087,392 : x
2. Step 2: Convert to fraction form
   12,905,727/28,087,392 = 28,087,392/x
3. Step 3: Cross multiply
   12,905,727x = 28,087,392 × 28,087,392
4. Step 4: Simplify right side
   12,905,727x = 788,901,589,361,664
5. Step 5: Solve for x
   x = 788,901,589,361,664/12,905,727
6. Step 6: Final answer
   x = 61,128,023.97