Finding the Third Proportional to 7,129,359 and 10,728,076.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,129,359 : 10,728,076.50 = 10,728,076.50 : x
2. Step 2: Convert to fraction form
   7,129,359/10,728,076.50 = 10,728,076.50/x
3. Step 3: Cross multiply
   7,129,359x = 10,728,076.50 × 10,728,076.50
4. Step 4: Simplify right side
   7,129,359x = 115,091,625,389,852.25
5. Step 5: Solve for x
   x = 115,091,625,389,852.25/7,129,359
6. Step 6: Final answer
   x = 16,143,334.26