Finding the Third Proportional to 115,889.91 and 240,661.69

Step by Step Solution

1. Step 1: Write the proportion equation
   115,889.91 : 240,661.69 = 240,661.69 : x
2. Step 2: Convert to fraction form
   115,889.91/240,661.69 = 240,661.69/x
3. Step 3: Cross multiply
   115,889.91x = 240,661.69 × 240,661.69
4. Step 4: Simplify right side
   115,889.91x = 57,918,047,830.35
5. Step 5: Solve for x
   x = 57,918,047,830.35/115,889.91
6. Step 6: Final answer
   x = 499,767.84