Finding the Third Proportional to 28,543.50 and 58,909.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,543.50 : 58,909.50 = 58,909.50 : x
2. Step 2: Convert to fraction form
   28,543.50/58,909.50 = 58,909.50/x
3. Step 3: Cross multiply
   28,543.50x = 58,909.50 × 58,909.50
4. Step 4: Simplify right side
   28,543.50x = 3,470,329,190.25
5. Step 5: Solve for x
   x = 3,470,329,190.25/28,543.50
6. Step 6: Final answer
   x = 121,580.37