Finding the Third Proportional to 143,953.88 and 297,128.25

Step by Step Solution

1. Step 1: Write the proportion equation
   143,953.88 : 297,128.25 = 297,128.25 : x
2. Step 2: Convert to fraction form
   143,953.88/297,128.25 = 297,128.25/x
3. Step 3: Cross multiply
   143,953.88x = 297,128.25 × 297,128.25
4. Step 4: Simplify right side
   143,953.88x = 88,285,196,948.06
5. Step 5: Solve for x
   x = 88,285,196,948.06/143,953.88
6. Step 6: Final answer
   x = 613,288.09