Finding the Third Proportional to 359,217 and 563,503.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,217 : 563,503.50 = 563,503.50 : x
2. Step 2: Convert to fraction form
   359,217/563,503.50 = 563,503.50/x
3. Step 3: Cross multiply
   359,217x = 563,503.50 × 563,503.50
4. Step 4: Simplify right side
   359,217x = 317,536,194,512.25
5. Step 5: Solve for x
   x = 317,536,194,512.25/359,217
6. Step 6: Final answer
   x = 883,967.61