Finding the Third Proportional to 3,908,133 and 8,484,702

Step by Step Solution

1. Step 1: Write the proportion equation
   3,908,133 : 8,484,702 = 8,484,702 : x
2. Step 2: Convert to fraction form
   3,908,133/8,484,702 = 8,484,702/x
3. Step 3: Cross multiply
   3,908,133x = 8,484,702 × 8,484,702
4. Step 4: Simplify right side
   3,908,133x = 71,990,168,028,804
5. Step 5: Solve for x
   x = 71,990,168,028,804/3,908,133
6. Step 6: Final answer
   x = 18,420,603.40