Finding the Third Proportional to 155,688 and 240,822

Step by Step Solution

1. Step 1: Write the proportion equation
   155,688 : 240,822 = 240,822 : x
2. Step 2: Convert to fraction form
   155,688/240,822 = 240,822/x
3. Step 3: Cross multiply
   155,688x = 240,822 × 240,822
4. Step 4: Simplify right side
   155,688x = 57,995,235,684
5. Step 5: Solve for x
   x = 57,995,235,684/155,688
6. Step 6: Final answer
   x = 372,509.35