Finding the Third Proportional to 31,003,133 and 72,414,291

Step by Step Solution

1. Step 1: Write the proportion equation
   31,003,133 : 72,414,291 = 72,414,291 : x
2. Step 2: Convert to fraction form
   31,003,133/72,414,291 = 72,414,291/x
3. Step 3: Cross multiply
   31,003,133x = 72,414,291 × 72,414,291
4. Step 4: Simplify right side
   31,003,133x = 5,243,829,541,032,681
5. Step 5: Solve for x
   x = 5,243,829,541,032,681/31,003,133
6. Step 6: Final answer
   x = 169,138,697.73