Finding the Third Proportional to 288,385.50 and 632,931

Step by Step Solution

1. Step 1: Write the proportion equation
   288,385.50 : 632,931 = 632,931 : x
2. Step 2: Convert to fraction form
   288,385.50/632,931 = 632,931/x
3. Step 3: Cross multiply
   288,385.50x = 632,931 × 632,931
4. Step 4: Simplify right side
   288,385.50x = 400,601,650,761
5. Step 5: Solve for x
   x = 400,601,650,761/288,385.50
6. Step 6: Final answer
   x = 1,389,118.56