Finding the Third Proportional to 435,441 and 640,354.50

Step by Step Solution

1. Step 1: Write the proportion equation
   435,441 : 640,354.50 = 640,354.50 : x
2. Step 2: Convert to fraction form
   435,441/640,354.50 = 640,354.50/x
3. Step 3: Cross multiply
   435,441x = 640,354.50 × 640,354.50
4. Step 4: Simplify right side
   435,441x = 410,053,885,670.25
5. Step 5: Solve for x
   x = 410,053,885,670.25/435,441
6. Step 6: Final answer
   x = 941,697.92