Finding the Third Proportional to 361,215 and 572,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   361,215 : 572,440.50 = 572,440.50 : x
2. Step 2: Convert to fraction form
   361,215/572,440.50 = 572,440.50/x
3. Step 3: Cross multiply
   361,215x = 572,440.50 × 572,440.50
4. Step 4: Simplify right side
   361,215x = 327,688,126,040.25
5. Step 5: Solve for x
   x = 327,688,126,040.25/361,215
6. Step 6: Final answer
   x = 907,183.05