Finding the Third Proportional to 72,748 and 156,620

Step by Step Solution

1. Step 1: Write the proportion equation
   72,748 : 156,620 = 156,620 : x
2. Step 2: Convert to fraction form
   72,748/156,620 = 156,620/x
3. Step 3: Cross multiply
   72,748x = 156,620 × 156,620
4. Step 4: Simplify right side
   72,748x = 24,529,824,400
5. Step 5: Solve for x
   x = 24,529,824,400/72,748
6. Step 6: Final answer
   x = 337,188.99