Finding the Third Proportional to 4,422,384 and 9,290,376

Step by Step Solution

1. Step 1: Write the proportion equation
   4,422,384 : 9,290,376 = 9,290,376 : x
2. Step 2: Convert to fraction form
   4,422,384/9,290,376 = 9,290,376/x
3. Step 3: Cross multiply
   4,422,384x = 9,290,376 × 9,290,376
4. Step 4: Simplify right side
   4,422,384x = 86,311,086,221,376
5. Step 5: Solve for x
   x = 86,311,086,221,376/4,422,384
6. Step 6: Final answer
   x = 19,516,868.33