Finding the Third Proportional to 710,289 and 1,086,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   710,289 : 1,086,574.50 = 1,086,574.50 : x
2. Step 2: Convert to fraction form
   710,289/1,086,574.50 = 1,086,574.50/x
3. Step 3: Cross multiply
   710,289x = 1,086,574.50 × 1,086,574.50
4. Step 4: Simplify right side
   710,289x = 1,180,644,144,050.25
5. Step 5: Solve for x
   x = 1,180,644,144,050.25/710,289
6. Step 6: Final answer
   x = 1,662,202.49