Finding the Third Proportional to 28,504.13 and 65,980.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,504.13 : 65,980.50 = 65,980.50 : x
2. Step 2: Convert to fraction form
   28,504.13/65,980.50 = 65,980.50/x
3. Step 3: Cross multiply
   28,504.13x = 65,980.50 × 65,980.50
4. Step 4: Simplify right side
   28,504.13x = 4,353,426,380.25
5. Step 5: Solve for x
   x = 4,353,426,380.25/28,504.13
6. Step 6: Final answer
   x = 152,729.70