Finding the Third Proportional to 2,549,979 and 5,548,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549,979 : 5,548,561.50 = 5,548,561.50 : x
2. Step 2: Convert to fraction form
   2,549,979/5,548,561.50 = 5,548,561.50/x
3. Step 3: Cross multiply
   2,549,979x = 5,548,561.50 × 5,548,561.50
4. Step 4: Simplify right side
   2,549,979x = 30,786,534,719,282.25
5. Step 5: Solve for x
   x = 30,786,534,719,282.25/2,549,979
6. Step 6: Final answer
   x = 12,073,250.30