Finding the Third Proportional to 155,445 and 335,410

Step by Step Solution

1. Step 1: Write the proportion equation
   155,445 : 335,410 = 335,410 : x
2. Step 2: Convert to fraction form
   155,445/335,410 = 335,410/x
3. Step 3: Cross multiply
   155,445x = 335,410 × 335,410
4. Step 4: Simplify right side
   155,445x = 112,499,868,100
5. Step 5: Solve for x
   x = 112,499,868,100/155,445
6. Step 6: Final answer
   x = 723,727.80