Finding the Third Proportional to 135,418.50 and 293,436

Step by Step Solution

1. Step 1: Write the proportion equation
   135,418.50 : 293,436 = 293,436 : x
2. Step 2: Convert to fraction form
   135,418.50/293,436 = 293,436/x
3. Step 3: Cross multiply
   135,418.50x = 293,436 × 293,436
4. Step 4: Simplify right side
   135,418.50x = 86,104,686,096
5. Step 5: Solve for x
   x = 86,104,686,096/135,418.50
6. Step 6: Final answer
   x = 635,841.38