Finding the Third Proportional to 2,565,978.50 and 3,587,389

Step by Step Solution

1. Step 1: Write the proportion equation
   2,565,978.50 : 3,587,389 = 3,587,389 : x
2. Step 2: Convert to fraction form
   2,565,978.50/3,587,389 = 3,587,389/x
3. Step 3: Cross multiply
   2,565,978.50x = 3,587,389 × 3,587,389
4. Step 4: Simplify right side
   2,565,978.50x = 12,869,359,837,321
5. Step 5: Solve for x
   x = 12,869,359,837,321/2,565,978.50
6. Step 6: Final answer
   x = 5,015,381.01