Finding the Third Proportional to 28,305 and 42,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,305 : 42,367.50 = 42,367.50 : x
2. Step 2: Convert to fraction form
   28,305/42,367.50 = 42,367.50/x
3. Step 3: Cross multiply
   28,305x = 42,367.50 × 42,367.50
4. Step 4: Simplify right side
   28,305x = 1,795,005,056.25
5. Step 5: Solve for x
   x = 1,795,005,056.25/28,305
6. Step 6: Final answer
   x = 63,416.54