Finding the Third Proportional to 72,680 and 156,492

Step by Step Solution

1. Step 1: Write the proportion equation
   72,680 : 156,492 = 156,492 : x
2. Step 2: Convert to fraction form
   72,680/156,492 = 156,492/x
3. Step 3: Cross multiply
   72,680x = 156,492 × 156,492
4. Step 4: Simplify right side
   72,680x = 24,489,746,064
5. Step 5: Solve for x
   x = 24,489,746,064/72,680
6. Step 6: Final answer
   x = 336,953.03