Finding the Third Proportional to 19,269 and 28,777.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,269 : 28,777.50 = 28,777.50 : x
2. Step 2: Convert to fraction form
   19,269/28,777.50 = 28,777.50/x
3. Step 3: Cross multiply
   19,269x = 28,777.50 × 28,777.50
4. Step 4: Simplify right side
   19,269x = 828,144,506.25
5. Step 5: Solve for x
   x = 828,144,506.25/19,269
6. Step 6: Final answer
   x = 42,978.07