Finding the Third Proportional to 1,998,432 and 4,070,880

Step by Step Solution

1. Step 1: Write the proportion equation
   1,998,432 : 4,070,880 = 4,070,880 : x
2. Step 2: Convert to fraction form
   1,998,432/4,070,880 = 4,070,880/x
3. Step 3: Cross multiply
   1,998,432x = 4,070,880 × 4,070,880
4. Step 4: Simplify right side
   1,998,432x = 16,572,063,974,400
5. Step 5: Solve for x
   x = 16,572,063,974,400/1,998,432
6. Step 6: Final answer
   x = 8,292,533.33