Finding the Third Proportional to 8,538,762 and 13,207,155

Step by Step Solution

1. Step 1: Write the proportion equation
   8,538,762 : 13,207,155 = 13,207,155 : x
2. Step 2: Convert to fraction form
   8,538,762/13,207,155 = 13,207,155/x
3. Step 3: Cross multiply
   8,538,762x = 13,207,155 × 13,207,155
4. Step 4: Simplify right side
   8,538,762x = 174,428,943,194,025
5. Step 5: Solve for x
   x = 174,428,943,194,025/8,538,762
6. Step 6: Final answer
   x = 20,427,896.13