Finding the Third Proportional to 64,196.13 and 143,144.38

Step by Step Solution

1. Step 1: Write the proportion equation
   64,196.13 : 143,144.38 = 143,144.38 : x
2. Step 2: Convert to fraction form
   64,196.13/143,144.38 = 143,144.38/x
3. Step 3: Cross multiply
   64,196.13x = 143,144.38 × 143,144.38
4. Step 4: Simplify right side
   64,196.13x = 20,490,312,094.14
5. Step 5: Solve for x
   x = 20,490,312,094.14/64,196.13
6. Step 6: Final answer
   x = 319,183.01