Finding the Third Proportional to 5,126,164 and 7,209,607

Step by Step Solution

1. Step 1: Write the proportion equation
   5,126,164 : 7,209,607 = 7,209,607 : x
2. Step 2: Convert to fraction form
   5,126,164/7,209,607 = 7,209,607/x
3. Step 3: Cross multiply
   5,126,164x = 7,209,607 × 7,209,607
4. Step 4: Simplify right side
   5,126,164x = 51,978,433,094,449
5. Step 5: Solve for x
   x = 51,978,433,094,449/5,126,164
6. Step 6: Final answer
   x = 10,139,830.31