Finding the Third Proportional to 4,191,966 and 8,538,080

Step by Step Solution

1. Step 1: Write the proportion equation
   4,191,966 : 8,538,080 = 8,538,080 : x
2. Step 2: Convert to fraction form
   4,191,966/8,538,080 = 8,538,080/x
3. Step 3: Cross multiply
   4,191,966x = 8,538,080 × 8,538,080
4. Step 4: Simplify right side
   4,191,966x = 72,898,810,086,400
5. Step 5: Solve for x
   x = 72,898,810,086,400/4,191,966
6. Step 6: Final answer
   x = 17,390,124.37