Finding the Third Proportional to 123,961.50 and 254,457

Step by Step Solution

1. Step 1: Write the proportion equation
   123,961.50 : 254,457 = 254,457 : x
2. Step 2: Convert to fraction form
   123,961.50/254,457 = 254,457/x
3. Step 3: Cross multiply
   123,961.50x = 254,457 × 254,457
4. Step 4: Simplify right side
   123,961.50x = 64,748,364,849
5. Step 5: Solve for x
   x = 64,748,364,849/123,961.50
6. Step 6: Final answer
   x = 522,326.41