Finding the Third Proportional to 72,912 and 112,650

Step by Step Solution

1. Step 1: Write the proportion equation
   72,912 : 112,650 = 112,650 : x
2. Step 2: Convert to fraction form
   72,912/112,650 = 112,650/x
3. Step 3: Cross multiply
   72,912x = 112,650 × 112,650
4. Step 4: Simplify right side
   72,912x = 12,690,022,500
5. Step 5: Solve for x
   x = 12,690,022,500/72,912
6. Step 6: Final answer
   x = 174,045.73