Finding the Third Proportional to 287,535 and 441,349.50

Step by Step Solution

1. Step 1: Write the proportion equation
   287,535 : 441,349.50 = 441,349.50 : x
2. Step 2: Convert to fraction form
   287,535/441,349.50 = 441,349.50/x
3. Step 3: Cross multiply
   287,535x = 441,349.50 × 441,349.50
4. Step 4: Simplify right side
   287,535x = 194,789,381,150.25
5. Step 5: Solve for x
   x = 194,789,381,150.25/287,535
6. Step 6: Final answer
   x = 677,445.81