Finding the Third Proportional to 72,748 and 112,124

Step by Step Solution

1. Step 1: Write the proportion equation
   72,748 : 112,124 = 112,124 : x
2. Step 2: Convert to fraction form
   72,748/112,124 = 112,124/x
3. Step 3: Cross multiply
   72,748x = 112,124 × 112,124
4. Step 4: Simplify right side
   72,748x = 12,571,791,376
5. Step 5: Solve for x
   x = 12,571,791,376/72,748
6. Step 6: Final answer
   x = 172,812.88