Finding the Third Proportional to 697,590 and 1,490,340

Step by Step Solution

1. Step 1: Write the proportion equation
   697,590 : 1,490,340 = 1,490,340 : x
2. Step 2: Convert to fraction form
   697,590/1,490,340 = 1,490,340/x
3. Step 3: Cross multiply
   697,590x = 1,490,340 × 1,490,340
4. Step 4: Simplify right side
   697,590x = 2,221,113,315,600
5. Step 5: Solve for x
   x = 2,221,113,315,600/697,590
6. Step 6: Final answer
   x = 3,183,981.01