Finding the Third Proportional to 359,640.75 and 536,998.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,640.75 : 536,998.50 = 536,998.50 : x
2. Step 2: Convert to fraction form
   359,640.75/536,998.50 = 536,998.50/x
3. Step 3: Cross multiply
   359,640.75x = 536,998.50 × 536,998.50
4. Step 4: Simplify right side
   359,640.75x = 288,367,389,002.25
5. Step 5: Solve for x
   x = 288,367,389,002.25/359,640.75
6. Step 6: Final answer
   x = 801,820.68