Finding the Third Proportional to 31,003,070 and 72,414,116

Step by Step Solution

1. Step 1: Write the proportion equation
   31,003,070 : 72,414,116 = 72,414,116 : x
2. Step 2: Convert to fraction form
   31,003,070/72,414,116 = 72,414,116/x
3. Step 3: Cross multiply
   31,003,070x = 72,414,116 × 72,414,116
4. Step 4: Simplify right side
   31,003,070x = 5,243,804,196,061,456
5. Step 5: Solve for x
   x = 5,243,804,196,061,456/31,003,070
6. Step 6: Final answer
   x = 169,138,223.93