Finding the Third Proportional to 392,328.75 and 606,240

Step by Step Solution

1. Step 1: Write the proportion equation
   392,328.75 : 606,240 = 606,240 : x
2. Step 2: Convert to fraction form
   392,328.75/606,240 = 606,240/x
3. Step 3: Cross multiply
   392,328.75x = 606,240 × 606,240
4. Step 4: Simplify right side
   392,328.75x = 367,526,937,600
5. Step 5: Solve for x
   x = 367,526,937,600/392,328.75
6. Step 6: Final answer
   x = 936,783.09