Finding the Third Proportional to 4,157,620 and 8,889,784

Step by Step Solution

1. Step 1: Write the proportion equation
   4,157,620 : 8,889,784 = 8,889,784 : x
2. Step 2: Convert to fraction form
   4,157,620/8,889,784 = 8,889,784/x
3. Step 3: Cross multiply
   4,157,620x = 8,889,784 × 8,889,784
4. Step 4: Simplify right side
   4,157,620x = 79,028,259,566,656
5. Step 5: Solve for x
   x = 79,028,259,566,656/4,157,620
6. Step 6: Final answer
   x = 19,008,052.58