Finding the Third Proportional to 4,071,388 and 8,477,810

Step by Step Solution

1. Step 1: Write the proportion equation
   4,071,388 : 8,477,810 = 8,477,810 : x
2. Step 2: Convert to fraction form
   4,071,388/8,477,810 = 8,477,810/x
3. Step 3: Cross multiply
   4,071,388x = 8,477,810 × 8,477,810
4. Step 4: Simplify right side
   4,071,388x = 71,873,262,396,100
5. Step 5: Solve for x
   x = 71,873,262,396,100/4,071,388
6. Step 6: Final answer
   x = 17,653,257.91