Finding the Third Proportional to 3,908,182 and 8,611,470

Step by Step Solution

1. Step 1: Write the proportion equation
   3,908,182 : 8,611,470 = 8,611,470 : x
2. Step 2: Convert to fraction form
   3,908,182/8,611,470 = 8,611,470/x
3. Step 3: Cross multiply
   3,908,182x = 8,611,470 × 8,611,470
4. Step 4: Simplify right side
   3,908,182x = 74,157,415,560,900
5. Step 5: Solve for x
   x = 74,157,415,560,900/3,908,182
6. Step 6: Final answer
   x = 18,974,913.54