Finding the Third Proportional to 54,769.50 and 84,570.75

Step by Step Solution

1. Step 1: Write the proportion equation
   54,769.50 : 84,570.75 = 84,570.75 : x
2. Step 2: Convert to fraction form
   54,769.50/84,570.75 = 84,570.75/x
3. Step 3: Cross multiply
   54,769.50x = 84,570.75 × 84,570.75
4. Step 4: Simplify right side
   54,769.50x = 7,152,211,755.56
5. Step 5: Solve for x
   x = 7,152,211,755.56/54,769.50
6. Step 6: Final answer
   x = 130,587.49