Finding the Third Proportional to 9,150,558 and 19,719,396

Step by Step Solution

1. Step 1: Write the proportion equation
   9,150,558 : 19,719,396 = 19,719,396 : x
2. Step 2: Convert to fraction form
   9,150,558/19,719,396 = 19,719,396/x
3. Step 3: Cross multiply
   9,150,558x = 19,719,396 × 19,719,396
4. Step 4: Simplify right side
   9,150,558x = 388,854,578,604,816
5. Step 5: Solve for x
   x = 388,854,578,604,816/9,150,558
6. Step 6: Final answer
   x = 42,495,176.64