Finding the Third Proportional to 1,979,428 and 4,238,792

Step by Step Solution

1. Step 1: Write the proportion equation
   1,979,428 : 4,238,792 = 4,238,792 : x
2. Step 2: Convert to fraction form
   1,979,428/4,238,792 = 4,238,792/x
3. Step 3: Cross multiply
   1,979,428x = 4,238,792 × 4,238,792
4. Step 4: Simplify right side
   1,979,428x = 17,967,357,619,264
5. Step 5: Solve for x
   x = 17,967,357,619,264/1,979,428
6. Step 6: Final answer
   x = 9,077,045.30