Finding the Third Proportional to 155,580 and 341,280

Step by Step Solution

1. Step 1: Write the proportion equation
   155,580 : 341,280 = 341,280 : x
2. Step 2: Convert to fraction form
   155,580/341,280 = 341,280/x
3. Step 3: Cross multiply
   155,580x = 341,280 × 341,280
4. Step 4: Simplify right side
   155,580x = 116,472,038,400
5. Step 5: Solve for x
   x = 116,472,038,400/155,580
6. Step 6: Final answer
   x = 748,631.18