Finding the Third Proportional to 5,147,580 and 10,979,142

Step by Step Solution

1. Step 1: Write the proportion equation
   5,147,580 : 10,979,142 = 10,979,142 : x
2. Step 2: Convert to fraction form
   5,147,580/10,979,142 = 10,979,142/x
3. Step 3: Cross multiply
   5,147,580x = 10,979,142 × 10,979,142
4. Step 4: Simplify right side
   5,147,580x = 120,541,559,056,164
5. Step 5: Solve for x
   x = 120,541,559,056,164/5,147,580
6. Step 6: Final answer
   x = 23,417,131.75