Finding the Third Proportional to 155,616 and 341,490

Step by Step Solution

1. Step 1: Write the proportion equation
   155,616 : 341,490 = 341,490 : x
2. Step 2: Convert to fraction form
   155,616/341,490 = 341,490/x
3. Step 3: Cross multiply
   155,616x = 341,490 × 341,490
4. Step 4: Simplify right side
   155,616x = 116,615,420,100
5. Step 5: Solve for x
   x = 116,615,420,100/155,616
6. Step 6: Final answer
   x = 749,379.37