Finding the Third Proportional to 658,984 and 1,438,820

Step by Step Solution

1. Step 1: Write the proportion equation
   658,984 : 1,438,820 = 1,438,820 : x
2. Step 2: Convert to fraction form
   658,984/1,438,820 = 1,438,820/x
3. Step 3: Cross multiply
   658,984x = 1,438,820 × 1,438,820
4. Step 4: Simplify right side
   658,984x = 2,070,202,992,400
5. Step 5: Solve for x
   x = 2,070,202,992,400/658,984
6. Step 6: Final answer
   x = 3,141,507.22