Finding the Third Proportional to 658,842 and 1,438,164

Step by Step Solution

1. Step 1: Write the proportion equation
   658,842 : 1,438,164 = 1,438,164 : x
2. Step 2: Convert to fraction form
   658,842/1,438,164 = 1,438,164/x
3. Step 3: Cross multiply
   658,842x = 1,438,164 × 1,438,164
4. Step 4: Simplify right side
   658,842x = 2,068,315,690,896
5. Step 5: Solve for x
   x = 2,068,315,690,896/658,842
6. Step 6: Final answer
   x = 3,139,319.73