Finding the Third Proportional to 359,222.63 and 598,680

Step by Step Solution

1. Step 1: Write the proportion equation
   359,222.63 : 598,680 = 598,680 : x
2. Step 2: Convert to fraction form
   359,222.63/598,680 = 598,680/x
3. Step 3: Cross multiply
   359,222.63x = 598,680 × 598,680
4. Step 4: Simplify right side
   359,222.63x = 358,417,742,400
5. Step 5: Solve for x
   x = 358,417,742,400/359,222.63
6. Step 6: Final answer
   x = 997,759.38