Finding the Third Proportional to 1,878,606 and 4,057,290

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878,606 : 4,057,290 = 4,057,290 : x
2. Step 2: Convert to fraction form
   1,878,606/4,057,290 = 4,057,290/x
3. Step 3: Cross multiply
   1,878,606x = 4,057,290 × 4,057,290
4. Step 4: Simplify right side
   1,878,606x = 16,461,602,144,100
5. Step 5: Solve for x
   x = 16,461,602,144,100/1,878,606
6. Step 6: Final answer
   x = 8,762,668.78