Finding the Third Proportional to 288,358 and 632,850

Step by Step Solution

1. Step 1: Write the proportion equation
   288,358 : 632,850 = 632,850 : x
2. Step 2: Convert to fraction form
   288,358/632,850 = 632,850/x
3. Step 3: Cross multiply
   288,358x = 632,850 × 632,850
4. Step 4: Simplify right side
   288,358x = 400,499,122,500
5. Step 5: Solve for x
   x = 400,499,122,500/288,358
6. Step 6: Final answer
   x = 1,388,895.48