Finding the Third Proportional to 134,105.25 and 287,681.25

Step by Step Solution

1. Step 1: Write the proportion equation
   134,105.25 : 287,681.25 = 287,681.25 : x
2. Step 2: Convert to fraction form
   134,105.25/287,681.25 = 287,681.25/x
3. Step 3: Cross multiply
   134,105.25x = 287,681.25 × 287,681.25
4. Step 4: Simplify right side
   134,105.25x = 82,760,501,601.56
5. Step 5: Solve for x
   x = 82,760,501,601.56/134,105.25
6. Step 6: Final answer
   x = 617,130.96