Finding the Third Proportional to 54,063.50 and 86,091.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,063.50 : 86,091.50 = 86,091.50 : x
2. Step 2: Convert to fraction form
   54,063.50/86,091.50 = 86,091.50/x
3. Step 3: Cross multiply
   54,063.50x = 86,091.50 × 86,091.50
4. Step 4: Simplify right side
   54,063.50x = 7,411,746,372.25
5. Step 5: Solve for x
   x = 7,411,746,372.25/54,063.50
6. Step 6: Final answer
   x = 137,093.35