Finding the Third Proportional to 869,613 and 1,201,608

Step by Step Solution

1. Step 1: Write the proportion equation
   869,613 : 1,201,608 = 1,201,608 : x
2. Step 2: Convert to fraction form
   869,613/1,201,608 = 1,201,608/x
3. Step 3: Cross multiply
   869,613x = 1,201,608 × 1,201,608
4. Step 4: Simplify right side
   869,613x = 1,443,861,785,664
5. Step 5: Solve for x
   x = 1,443,861,785,664/869,613
6. Step 6: Final answer
   x = 1,660,349.82