Finding the Third Proportional to 359,271 and 499,531.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,271 : 499,531.50 = 499,531.50 : x
2. Step 2: Convert to fraction form
   359,271/499,531.50 = 499,531.50/x
3. Step 3: Cross multiply
   359,271x = 499,531.50 × 499,531.50
4. Step 4: Simplify right side
   359,271x = 249,531,719,492.25
5. Step 5: Solve for x
   x = 249,531,719,492.25/359,271
6. Step 6: Final answer
   x = 694,550.13