Finding the Third Proportional to 457,222.50 and 712,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   457,222.50 : 712,009.50 = 712,009.50 : x
2. Step 2: Convert to fraction form
   457,222.50/712,009.50 = 712,009.50/x
3. Step 3: Cross multiply
   457,222.50x = 712,009.50 × 712,009.50
4. Step 4: Simplify right side
   457,222.50x = 506,957,528,090.25
5. Step 5: Solve for x
   x = 506,957,528,090.25/457,222.50
6. Step 6: Final answer
   x = 1,108,776.42