Finding the Third Proportional to 8,665,129.75 and 12,113,762.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,665,129.75 : 12,113,762.50 = 12,113,762.50 : x
2. Step 2: Convert to fraction form
   8,665,129.75/12,113,762.50 = 12,113,762.50/x
3. Step 3: Cross multiply
   8,665,129.75x = 12,113,762.50 × 12,113,762.50
4. Step 4: Simplify right side
   8,665,129.75x = 146,743,241,906,406.25
5. Step 5: Solve for x
   x = 146,743,241,906,406.25/8,665,129.75
6. Step 6: Final answer
   x = 16,934,915.71