Finding the Third Proportional to 575,462.25 and 871,189.50

Step by Step Solution

1. Step 1: Write the proportion equation
   575,462.25 : 871,189.50 = 871,189.50 : x
2. Step 2: Convert to fraction form
   575,462.25/871,189.50 = 871,189.50/x
3. Step 3: Cross multiply
   575,462.25x = 871,189.50 × 871,189.50
4. Step 4: Simplify right side
   575,462.25x = 758,971,144,910.25
5. Step 5: Solve for x
   x = 758,971,144,910.25/575,462.25
6. Step 6: Final answer
   x = 1,318,889.54