Finding the Third Proportional to 54,018 and 85,459.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,018 : 85,459.50 = 85,459.50 : x
2. Step 2: Convert to fraction form
   54,018/85,459.50 = 85,459.50/x
3. Step 3: Cross multiply
   54,018x = 85,459.50 × 85,459.50
4. Step 4: Simplify right side
   54,018x = 7,303,326,140.25
5. Step 5: Solve for x
   x = 7,303,326,140.25/54,018
6. Step 6: Final answer
   x = 135,201.71