Finding the Third Proportional to 587,773.50 and 879,379.50

Step by Step Solution

1. Step 1: Write the proportion equation
   587,773.50 : 879,379.50 = 879,379.50 : x
2. Step 2: Convert to fraction form
   587,773.50/879,379.50 = 879,379.50/x
3. Step 3: Cross multiply
   587,773.50x = 879,379.50 × 879,379.50
4. Step 4: Simplify right side
   587,773.50x = 773,308,305,020.25
5. Step 5: Solve for x
   x = 773,308,305,020.25/587,773.50
6. Step 6: Final answer
   x = 1,315,656.98