Finding the Third Proportional to 31,003,353 and 72,414,819

Step by Step Solution

1. Step 1: Write the proportion equation
   31,003,353 : 72,414,819 = 72,414,819 : x
2. Step 2: Convert to fraction form
   31,003,353/72,414,819 = 72,414,819/x
3. Step 3: Cross multiply
   31,003,353x = 72,414,819 × 72,414,819
4. Step 4: Simplify right side
   31,003,353x = 5,243,906,010,802,761
5. Step 5: Solve for x
   x = 5,243,906,010,802,761/31,003,353
6. Step 6: Final answer
   x = 169,139,964.02