Finding the Third Proportional to 425,632 and 890,690

Step by Step Solution

1. Step 1: Write the proportion equation
   425,632 : 890,690 = 890,690 : x
2. Step 2: Convert to fraction form
   425,632/890,690 = 890,690/x
3. Step 3: Cross multiply
   425,632x = 890,690 × 890,690
4. Step 4: Simplify right side
   425,632x = 793,328,676,100
5. Step 5: Solve for x
   x = 793,328,676,100/425,632
6. Step 6: Final answer
   x = 1,863,884.00