Finding the Third Proportional to 9,143,902 and 12,538,791

Step by Step Solution

1. Step 1: Write the proportion equation
   9,143,902 : 12,538,791 = 12,538,791 : x
2. Step 2: Convert to fraction form
   9,143,902/12,538,791 = 12,538,791/x
3. Step 3: Cross multiply
   9,143,902x = 12,538,791 × 12,538,791
4. Step 4: Simplify right side
   9,143,902x = 157,221,279,741,681
5. Step 5: Solve for x
   x = 157,221,279,741,681/9,143,902
6. Step 6: Final answer
   x = 17,194,112.51