Finding the Third Proportional to 58,357.25 and 128,061.25

Step by Step Solution

1. Step 1: Write the proportion equation
   58,357.25 : 128,061.25 = 128,061.25 : x
2. Step 2: Convert to fraction form
   58,357.25/128,061.25 = 128,061.25/x
3. Step 3: Cross multiply
   58,357.25x = 128,061.25 × 128,061.25
4. Step 4: Simplify right side
   58,357.25x = 16,399,683,751.56
5. Step 5: Solve for x
   x = 16,399,683,751.56/58,357.25
6. Step 6: Final answer
   x = 281,022.22