Finding the Third Proportional to 71,316 and 153,360

Step by Step Solution

1. Step 1: Write the proportion equation
   71,316 : 153,360 = 153,360 : x
2. Step 2: Convert to fraction form
   71,316/153,360 = 153,360/x
3. Step 3: Cross multiply
   71,316x = 153,360 × 153,360
4. Step 4: Simplify right side
   71,316x = 23,519,289,600
5. Step 5: Solve for x
   x = 23,519,289,600/71,316
6. Step 6: Final answer
   x = 329,789.80