Finding the Third Proportional to 66,164.63 and 144,324

Step by Step Solution

1. Step 1: Write the proportion equation
   66,164.63 : 144,324 = 144,324 : x
2. Step 2: Convert to fraction form
   66,164.63/144,324 = 144,324/x
3. Step 3: Cross multiply
   66,164.63x = 144,324 × 144,324
4. Step 4: Simplify right side
   66,164.63x = 20,829,416,976
5. Step 5: Solve for x
   x = 20,829,416,976/66,164.63
6. Step 6: Final answer
   x = 314,811.99