Finding the Third Proportional to 697,588 and 1,490,336

Step by Step Solution

1. Step 1: Write the proportion equation
   697,588 : 1,490,336 = 1,490,336 : x
2. Step 2: Convert to fraction form
   697,588/1,490,336 = 1,490,336/x
3. Step 3: Cross multiply
   697,588x = 1,490,336 × 1,490,336
4. Step 4: Simplify right side
   697,588x = 2,221,101,392,896
5. Step 5: Solve for x
   x = 2,221,101,392,896/697,588
6. Step 6: Final answer
   x = 3,183,973.05