Finding the Third Proportional to 30,261,577.50 and 62,676,415.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,261,577.50 : 62,676,415.50 = 62,676,415.50 : x
2. Step 2: Convert to fraction form
   30,261,577.50/62,676,415.50 = 62,676,415.50/x
3. Step 3: Cross multiply
   30,261,577.50x = 62,676,415.50 × 62,676,415.50
4. Step 4: Simplify right side
   30,261,577.50x = 3,928,333,059,928,640
5. Step 5: Solve for x
   x = 3,928,333,059,928,640/30,261,577.50
6. Step 6: Final answer
   x = 129,812,567.11