Finding the Third Proportional to 1,914,840 and 4,148,820

Step by Step Solution

1. Step 1: Write the proportion equation
   1,914,840 : 4,148,820 = 4,148,820 : x
2. Step 2: Convert to fraction form
   1,914,840/4,148,820 = 4,148,820/x
3. Step 3: Cross multiply
   1,914,840x = 4,148,820 × 4,148,820
4. Step 4: Simplify right side
   1,914,840x = 17,212,707,392,400
5. Step 5: Solve for x
   x = 17,212,707,392,400/1,914,840
6. Step 6: Final answer
   x = 8,989,110