Finding the Third Proportional to 128,929.64 and 175,096.69

Step by Step Solution

1. Step 1: Write the proportion equation
   128,929.64 : 175,096.69 = 175,096.69 : x
2. Step 2: Convert to fraction form
   128,929.64/175,096.69 = 175,096.69/x
3. Step 3: Cross multiply
   128,929.64x = 175,096.69 × 175,096.69
4. Step 4: Simplify right side
   128,929.64x = 30,658,849,973.47
5. Step 5: Solve for x
   x = 30,658,849,973.47/128,929.64
6. Step 6: Final answer
   x = 237,795.20