Finding the Third Proportional to 3,908,074 and 8,484,588

Step by Step Solution

1. Step 1: Write the proportion equation
   3,908,074 : 8,484,588 = 8,484,588 : x
2. Step 2: Convert to fraction form
   3,908,074/8,484,588 = 8,484,588/x
3. Step 3: Cross multiply
   3,908,074x = 8,484,588 × 8,484,588
4. Step 4: Simplify right side
   3,908,074x = 71,988,233,529,744
5. Step 5: Solve for x
   x = 71,988,233,529,744/3,908,074
6. Step 6: Final answer
   x = 18,420,386.49