Finding the Third Proportional to 609,716 and 1,402,320

Step by Step Solution

1. Step 1: Write the proportion equation
   609,716 : 1,402,320 = 1,402,320 : x
2. Step 2: Convert to fraction form
   609,716/1,402,320 = 1,402,320/x
3. Step 3: Cross multiply
   609,716x = 1,402,320 × 1,402,320
4. Step 4: Simplify right side
   609,716x = 1,966,501,382,400
5. Step 5: Solve for x
   x = 1,966,501,382,400/609,716
6. Step 6: Final answer
   x = 3,225,274.36