Finding the Third Proportional to 5,126,216 and 7,209,687

Step by Step Solution

1. Step 1: Write the proportion equation
   5,126,216 : 7,209,687 = 7,209,687 : x
2. Step 2: Convert to fraction form
   5,126,216/7,209,687 = 7,209,687/x
3. Step 3: Cross multiply
   5,126,216x = 7,209,687 × 7,209,687
4. Step 4: Simplify right side
   5,126,216x = 51,979,586,637,969
5. Step 5: Solve for x
   x = 51,979,586,637,969/5,126,216
6. Step 6: Final answer
   x = 10,139,952.48