Finding the Third Proportional to 5,181,437 and 8,127,130

Step by Step Solution

1. Step 1: Write the proportion equation
   5,181,437 : 8,127,130 = 8,127,130 : x
2. Step 2: Convert to fraction form
   5,181,437/8,127,130 = 8,127,130/x
3. Step 3: Cross multiply
   5,181,437x = 8,127,130 × 8,127,130
4. Step 4: Simplify right side
   5,181,437x = 66,050,242,036,900
5. Step 5: Solve for x
   x = 66,050,242,036,900/5,181,437
6. Step 6: Final answer
   x = 12,747,475.66