Finding the Third Proportional to 288,465 and 632,284.50

Step by Step Solution

1. Step 1: Write the proportion equation
   288,465 : 632,284.50 = 632,284.50 : x
2. Step 2: Convert to fraction form
   288,465/632,284.50 = 632,284.50/x
3. Step 3: Cross multiply
   288,465x = 632,284.50 × 632,284.50
4. Step 4: Simplify right side
   288,465x = 399,783,688,940.25
5. Step 5: Solve for x
   x = 399,783,688,940.25/288,465
6. Step 6: Final answer
   x = 1,385,900.16