Finding the Third Proportional to 1,070,824 and 1,988,432

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070,824 : 1,988,432 = 1,988,432 : x
2. Step 2: Convert to fraction form
   1,070,824/1,988,432 = 1,988,432/x
3. Step 3: Cross multiply
   1,070,824x = 1,988,432 × 1,988,432
4. Step 4: Simplify right side
   1,070,824x = 3,953,861,818,624
5. Step 5: Solve for x
   x = 3,953,861,818,624/1,070,824
6. Step 6: Final answer
   x = 3,692,354.50