Finding the Third Proportional to 349,920 and 517,498.88

Step by Step Solution

1. Step 1: Write the proportion equation
   349,920 : 517,498.88 = 517,498.88 : x
2. Step 2: Convert to fraction form
   349,920/517,498.88 = 517,498.88/x
3. Step 3: Cross multiply
   349,920x = 517,498.88 × 517,498.88
4. Step 4: Simplify right side
   349,920x = 267,805,085,626.27
5. Step 5: Solve for x
   x = 267,805,085,626.27/349,920
6. Step 6: Final answer
   x = 765,332.32