Finding the Third Proportional to 465,489 and 711,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   465,489 : 711,760.50 = 711,760.50 : x
2. Step 2: Convert to fraction form
   465,489/711,760.50 = 711,760.50/x
3. Step 3: Cross multiply
   465,489x = 711,760.50 × 711,760.50
4. Step 4: Simplify right side
   465,489x = 506,603,009,360.25
5. Step 5: Solve for x
   x = 506,603,009,360.25/465,489
6. Step 6: Final answer
   x = 1,088,324.34