Finding the Third Proportional to 58,617,142 and 124,815,520

Step by Step Solution

1. Step 1: Write the proportion equation
   58,617,142 : 124,815,520 = 124,815,520 : x
2. Step 2: Convert to fraction form
   58,617,142/124,815,520 = 124,815,520/x
3. Step 3: Cross multiply
   58,617,142x = 124,815,520 × 124,815,520
4. Step 4: Simplify right side
   58,617,142x = 15,578,914,032,870,400
5. Step 5: Solve for x
   x = 15,578,914,032,870,400/58,617,142
6. Step 6: Final answer
   x = 265,774,029.60