Finding the Third Proportional to 54,688.50 and 89,302.50

Step by Step Solution

1. Step 1: Write the proportion equation
   54,688.50 : 89,302.50 = 89,302.50 : x
2. Step 2: Convert to fraction form
   54,688.50/89,302.50 = 89,302.50/x
3. Step 3: Cross multiply
   54,688.50x = 89,302.50 × 89,302.50
4. Step 4: Simplify right side
   54,688.50x = 7,974,936,506.25
5. Step 5: Solve for x
   x = 7,974,936,506.25/54,688.50
6. Step 6: Final answer
   x = 145,824.74