Finding the Third Proportional to 435,622.50 and 660,001.50

Step by Step Solution

1. Step 1: Write the proportion equation
   435,622.50 : 660,001.50 = 660,001.50 : x
2. Step 2: Convert to fraction form
   435,622.50/660,001.50 = 660,001.50/x
3. Step 3: Cross multiply
   435,622.50x = 660,001.50 × 660,001.50
4. Step 4: Simplify right side
   435,622.50x = 435,601,980,002.25
5. Step 5: Solve for x
   x = 435,601,980,002.25/435,622.50
6. Step 6: Final answer
   x = 999,952.90