Finding the Third Proportional to 54,681.75 and 85,667.63

Step by Step Solution

1. Step 1: Write the proportion equation
   54,681.75 : 85,667.63 = 85,667.63 : x
2. Step 2: Convert to fraction form
   54,681.75/85,667.63 = 85,667.63/x
3. Step 3: Cross multiply
   54,681.75x = 85,667.63 × 85,667.63
4. Step 4: Simplify right side
   54,681.75x = 7,338,941,973.14
5. Step 5: Solve for x
   x = 7,338,941,973.14/54,681.75
6. Step 6: Final answer
   x = 134,211.91