Finding the Third Proportional to 601,724 and 1,321,540

Step by Step Solution

1. Step 1: Write the proportion equation
   601,724 : 1,321,540 = 1,321,540 : x
2. Step 2: Convert to fraction form
   601,724/1,321,540 = 1,321,540/x
3. Step 3: Cross multiply
   601,724x = 1,321,540 × 1,321,540
4. Step 4: Simplify right side
   601,724x = 1,746,467,971,600
5. Step 5: Solve for x
   x = 1,746,467,971,600/601,724
6. Step 6: Final answer
   x = 2,902,440.27