Finding the Third Proportional to 28,336.50 and 42,860.81

Step by Step Solution

1. Step 1: Write the proportion equation
   28,336.50 : 42,860.81 = 42,860.81 : x
2. Step 2: Convert to fraction form
   28,336.50/42,860.81 = 42,860.81/x
3. Step 3: Cross multiply
   28,336.50x = 42,860.81 × 42,860.81
4. Step 4: Simplify right side
   28,336.50x = 1,837,049,248.16
5. Step 5: Solve for x
   x = 1,837,049,248.16/28,336.50
6. Step 6: Final answer
   x = 64,829.79