Finding the Third Proportional to 288,156.50 and 632,363

Step by Step Solution

1. Step 1: Write the proportion equation
   288,156.50 : 632,363 = 632,363 : x
2. Step 2: Convert to fraction form
   288,156.50/632,363 = 632,363/x
3. Step 3: Cross multiply
   288,156.50x = 632,363 × 632,363
4. Step 4: Simplify right side
   288,156.50x = 399,882,963,769
5. Step 5: Solve for x
   x = 399,882,963,769/288,156.50
6. Step 6: Final answer
   x = 1,387,728.42