Finding the Third Proportional to 5,108,560 and 7,438,200

Step by Step Solution

1. Step 1: Write the proportion equation
   5,108,560 : 7,438,200 = 7,438,200 : x
2. Step 2: Convert to fraction form
   5,108,560/7,438,200 = 7,438,200/x
3. Step 3: Cross multiply
   5,108,560x = 7,438,200 × 7,438,200
4. Step 4: Simplify right side
   5,108,560x = 55,326,819,240,000
5. Step 5: Solve for x
   x = 55,326,819,240,000/5,108,560
6. Step 6: Final answer
   x = 10,830,218.15