Finding the Third Proportional to 1,287,426 and 1,947,709

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,426 : 1,947,709 = 1,947,709 : x
2. Step 2: Convert to fraction form
   1,287,426/1,947,709 = 1,947,709/x
3. Step 3: Cross multiply
   1,287,426x = 1,947,709 × 1,947,709
4. Step 4: Simplify right side
   1,287,426x = 3,793,570,348,681
5. Step 5: Solve for x
   x = 3,793,570,348,681/1,287,426
6. Step 6: Final answer
   x = 2,946,631.77