Finding the Third Proportional to 31,003,347 and 72,414,804

Step by Step Solution

1. Step 1: Write the proportion equation
   31,003,347 : 72,414,804 = 72,414,804 : x
2. Step 2: Convert to fraction form
   31,003,347/72,414,804 = 72,414,804/x
3. Step 3: Cross multiply
   31,003,347x = 72,414,804 × 72,414,804
4. Step 4: Simplify right side
   31,003,347x = 5,243,903,838,358,416
5. Step 5: Solve for x
   x = 5,243,903,838,358,416/31,003,347
6. Step 6: Final answer
   x = 169,139,926.68