Finding the Third Proportional to 575,460 and 871,186.50

Step by Step Solution

1. Step 1: Write the proportion equation
   575,460 : 871,186.50 = 871,186.50 : x
2. Step 2: Convert to fraction form
   575,460/871,186.50 = 871,186.50/x
3. Step 3: Cross multiply
   575,460x = 871,186.50 × 871,186.50
4. Step 4: Simplify right side
   575,460x = 758,965,917,782.25
5. Step 5: Solve for x
   x = 758,965,917,782.25/575,460
6. Step 6: Final answer
   x = 1,318,885.62