Finding the Third Proportional to 272,492 and 659,360

Step by Step Solution

1. Step 1: Write the proportion equation
   272,492 : 659,360 = 659,360 : x
2. Step 2: Convert to fraction form
   272,492/659,360 = 659,360/x
3. Step 3: Cross multiply
   272,492x = 659,360 × 659,360
4. Step 4: Simplify right side
   272,492x = 434,755,609,600
5. Step 5: Solve for x
   x = 434,755,609,600/272,492
6. Step 6: Final answer
   x = 1,595,480.27