Finding the Third Proportional to 5,464,978.88 and 8,020,139.06

Step by Step Solution

1. Step 1: Write the proportion equation
   5,464,978.88 : 8,020,139.06 = 8,020,139.06 : x
2. Step 2: Convert to fraction form
   5,464,978.88/8,020,139.06 = 8,020,139.06/x
3. Step 3: Cross multiply
   5,464,978.88x = 8,020,139.06 × 8,020,139.06
4. Step 4: Simplify right side
   5,464,978.88x = 64,322,630,581,838.38
5. Step 5: Solve for x
   x = 64,322,630,581,838.38/5,464,978.88
6. Step 6: Final answer
   x = 11,769,968.75