Finding the Third Proportional to 1,664,220 and 2,378,100

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664,220 : 2,378,100 = 2,378,100 : x
2. Step 2: Convert to fraction form
   1,664,220/2,378,100 = 2,378,100/x
3. Step 3: Cross multiply
   1,664,220x = 2,378,100 × 2,378,100
4. Step 4: Simplify right side
   1,664,220x = 5,655,359,610,000
5. Step 5: Solve for x
   x = 5,655,359,610,000/1,664,220
6. Step 6: Final answer
   x = 3,398,204.33