Finding the Third Proportional to 9,107,480 and 19,728,320

Step by Step Solution

1. Step 1: Write the proportion equation
   9,107,480 : 19,728,320 = 19,728,320 : x
2. Step 2: Convert to fraction form
   9,107,480/19,728,320 = 19,728,320/x
3. Step 3: Cross multiply
   9,107,480x = 19,728,320 × 19,728,320
4. Step 4: Simplify right side
   9,107,480x = 389,206,610,022,400
5. Step 5: Solve for x
   x = 389,206,610,022,400/9,107,480
6. Step 6: Final answer
   x = 42,734,830.05