Finding the Third Proportional to 5,600,008 and 8,687,760

Step by Step Solution

1. Step 1: Write the proportion equation
   5,600,008 : 8,687,760 = 8,687,760 : x
2. Step 2: Convert to fraction form
   5,600,008/8,687,760 = 8,687,760/x
3. Step 3: Cross multiply
   5,600,008x = 8,687,760 × 8,687,760
4. Step 4: Simplify right side
   5,600,008x = 75,477,173,817,600
5. Step 5: Solve for x
   x = 75,477,173,817,600/5,600,008
6. Step 6: Final answer
   x = 13,478,047.50