Finding the Third Proportional to 1,287,438 and 1,947,724

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,438 : 1,947,724 = 1,947,724 : x
2. Step 2: Convert to fraction form
   1,287,438/1,947,724 = 1,947,724/x
3. Step 3: Cross multiply
   1,287,438x = 1,947,724 × 1,947,724
4. Step 4: Simplify right side
   1,287,438x = 3,793,628,780,176
5. Step 5: Solve for x
   x = 3,793,628,780,176/1,287,438
6. Step 6: Final answer
   x = 2,946,649.69