Finding the Third Proportional to 5,992,142 and 8,478,700

Step by Step Solution

1. Step 1: Write the proportion equation
   5,992,142 : 8,478,700 = 8,478,700 : x
2. Step 2: Convert to fraction form
   5,992,142/8,478,700 = 8,478,700/x
3. Step 3: Cross multiply
   5,992,142x = 8,478,700 × 8,478,700
4. Step 4: Simplify right side
   5,992,142x = 71,888,353,690,000
5. Step 5: Solve for x
   x = 71,888,353,690,000/5,992,142
6. Step 6: Final answer
   x = 11,997,104.49