Finding the Third Proportional to 54,742.50 and 84,530.25

Step by Step Solution

1. Step 1: Write the proportion equation
   54,742.50 : 84,530.25 = 84,530.25 : x
2. Step 2: Convert to fraction form
   54,742.50/84,530.25 = 84,530.25/x
3. Step 3: Cross multiply
   54,742.50x = 84,530.25 × 84,530.25
4. Step 4: Simplify right side
   54,742.50x = 7,145,363,165.06
5. Step 5: Solve for x
   x = 7,145,363,165.06/54,742.50
6. Step 6: Final answer
   x = 130,526.80