Finding the Third Proportional to 3,839,776 and 8,249,380

Step by Step Solution

1. Step 1: Write the proportion equation
   3,839,776 : 8,249,380 = 8,249,380 : x
2. Step 2: Convert to fraction form
   3,839,776/8,249,380 = 8,249,380/x
3. Step 3: Cross multiply
   3,839,776x = 8,249,380 × 8,249,380
4. Step 4: Simplify right side
   3,839,776x = 68,052,270,384,400
5. Step 5: Solve for x
   x = 68,052,270,384,400/3,839,776
6. Step 6: Final answer
   x = 17,722,979.25