Finding the Third Proportional to 5,181,580 and 7,245,842

Step by Step Solution

1. Step 1: Write the proportion equation
   5,181,580 : 7,245,842 = 7,245,842 : x
2. Step 2: Convert to fraction form
   5,181,580/7,245,842 = 7,245,842/x
3. Step 3: Cross multiply
   5,181,580x = 7,245,842 × 7,245,842
4. Step 4: Simplify right side
   5,181,580x = 52,502,226,288,964
5. Step 5: Solve for x
   x = 52,502,226,288,964/5,181,580
6. Step 6: Final answer
   x = 10,132,474.32