Finding the Third Proportional to 168,081.75 and 249,115

Step by Step Solution

1. Step 1: Write the proportion equation
   168,081.75 : 249,115 = 249,115 : x
2. Step 2: Convert to fraction form
   168,081.75/249,115 = 249,115/x
3. Step 3: Cross multiply
   168,081.75x = 249,115 × 249,115
4. Step 4: Simplify right side
   168,081.75x = 62,058,283,225
5. Step 5: Solve for x
   x = 62,058,283,225/168,081.75
6. Step 6: Final answer
   x = 369,214.88