Finding the Third Proportional to 143,878 and 293,466

Step by Step Solution

1. Step 1: Write the proportion equation
   143,878 : 293,466 = 293,466 : x
2. Step 2: Convert to fraction form
   143,878/293,466 = 293,466/x
3. Step 3: Cross multiply
   143,878x = 293,466 × 293,466
4. Step 4: Simplify right side
   143,878x = 86,122,293,156
5. Step 5: Solve for x
   x = 86,122,293,156/143,878
6. Step 6: Final answer
   x = 598,578.61