Finding the Third Proportional to 98,494 and 143,434

Step by Step Solution

1. Step 1: Write the proportion equation
   98,494 : 143,434 = 143,434 : x
2. Step 2: Convert to fraction form
   98,494/143,434 = 143,434/x
3. Step 3: Cross multiply
   98,494x = 143,434 × 143,434
4. Step 4: Simplify right side
   98,494x = 20,573,312,356
5. Step 5: Solve for x
   x = 20,573,312,356/98,494
6. Step 6: Final answer
   x = 208,878.84