Finding the Third Proportional to 28,503.50 and 65,979.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,503.50 : 65,979.50 = 65,979.50 : x
2. Step 2: Convert to fraction form
   28,503.50/65,979.50 = 65,979.50/x
3. Step 3: Cross multiply
   28,503.50x = 65,979.50 × 65,979.50
4. Step 4: Simplify right side
   28,503.50x = 4,353,294,420.25
5. Step 5: Solve for x
   x = 4,353,294,420.25/28,503.50
6. Step 6: Final answer
   x = 152,728.42