Finding the Third Proportional to 136,287.50 and 293,405

Step by Step Solution

1. Step 1: Write the proportion equation
   136,287.50 : 293,405 = 293,405 : x
2. Step 2: Convert to fraction form
   136,287.50/293,405 = 293,405/x
3. Step 3: Cross multiply
   136,287.50x = 293,405 × 293,405
4. Step 4: Simplify right side
   136,287.50x = 86,086,494,025
5. Step 5: Solve for x
   x = 86,086,494,025/136,287.50
6. Step 6: Final answer
   x = 631,653.63