Finding the Third Proportional to 697,430 and 1,077,690

Step by Step Solution

1. Step 1: Write the proportion equation
   697,430 : 1,077,690 = 1,077,690 : x
2. Step 2: Convert to fraction form
   697,430/1,077,690 = 1,077,690/x
3. Step 3: Cross multiply
   697,430x = 1,077,690 × 1,077,690
4. Step 4: Simplify right side
   697,430x = 1,161,415,736,100
5. Step 5: Solve for x
   x = 1,161,415,736,100/697,430
6. Step 6: Final answer
   x = 1,665,279.29