Finding the Third Proportional to 4,190,814 and 9,149,268

Step by Step Solution

1. Step 1: Write the proportion equation
   4,190,814 : 9,149,268 = 9,149,268 : x
2. Step 2: Convert to fraction form
   4,190,814/9,149,268 = 9,149,268/x
3. Step 3: Cross multiply
   4,190,814x = 9,149,268 × 9,149,268
4. Step 4: Simplify right side
   4,190,814x = 83,709,104,935,824
5. Step 5: Solve for x
   x = 83,709,104,935,824/4,190,814
6. Step 6: Final answer
   x = 19,974,426.19