Finding the Third Proportional to 72,902 and 156,658

Step by Step Solution

1. Step 1: Write the proportion equation
   72,902 : 156,658 = 156,658 : x
2. Step 2: Convert to fraction form
   72,902/156,658 = 156,658/x
3. Step 3: Cross multiply
   72,902x = 156,658 × 156,658
4. Step 4: Simplify right side
   72,902x = 24,541,728,964
5. Step 5: Solve for x
   x = 24,541,728,964/72,902
6. Step 6: Final answer
   x = 336,640.00