Finding the Third Proportional to 4,190,720 and 9,149,088

Step by Step Solution

1. Step 1: Write the proportion equation
   4,190,720 : 9,149,088 = 9,149,088 : x
2. Step 2: Convert to fraction form
   4,190,720/9,149,088 = 9,149,088/x
3. Step 3: Cross multiply
   4,190,720x = 9,149,088 × 9,149,088
4. Step 4: Simplify right side
   4,190,720x = 83,705,811,231,744
5. Step 5: Solve for x
   x = 83,705,811,231,744/4,190,720
6. Step 6: Final answer
   x = 19,974,088.28