Finding the Third Proportional to 601,800 and 1,321,680

Step by Step Solution

1. Step 1: Write the proportion equation
   601,800 : 1,321,680 = 1,321,680 : x
2. Step 2: Convert to fraction form
   601,800/1,321,680 = 1,321,680/x
3. Step 3: Cross multiply
   601,800x = 1,321,680 × 1,321,680
4. Step 4: Simplify right side
   601,800x = 1,746,838,022,400
5. Step 5: Solve for x
   x = 1,746,838,022,400/601,800
6. Step 6: Final answer
   x = 2,902,688.64