Finding the Third Proportional to 711,404 and 1,679,312

Step by Step Solution

1. Step 1: Write the proportion equation
   711,404 : 1,679,312 = 1,679,312 : x
2. Step 2: Convert to fraction form
   711,404/1,679,312 = 1,679,312/x
3. Step 3: Cross multiply
   711,404x = 1,679,312 × 1,679,312
4. Step 4: Simplify right side
   711,404x = 2,820,088,793,344
5. Step 5: Solve for x
   x = 2,820,088,793,344/711,404
6. Step 6: Final answer
   x = 3,964,117.14