Finding the Third Proportional to 72,700 and 106,650

Step by Step Solution

1. Step 1: Write the proportion equation
   72,700 : 106,650 = 106,650 : x
2. Step 2: Convert to fraction form
   72,700/106,650 = 106,650/x
3. Step 3: Cross multiply
   72,700x = 106,650 × 106,650
4. Step 4: Simplify right side
   72,700x = 11,374,222,500
5. Step 5: Solve for x
   x = 11,374,222,500/72,700
6. Step 6: Final answer
   x = 156,454.23