Finding the Third Proportional to 28,278 and 41,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,278 : 41,638.50 = 41,638.50 : x
2. Step 2: Convert to fraction form
   28,278/41,638.50 = 41,638.50/x
3. Step 3: Cross multiply
   28,278x = 41,638.50 × 41,638.50
4. Step 4: Simplify right side
   28,278x = 1,733,764,682.25
5. Step 5: Solve for x
   x = 1,733,764,682.25/28,278
6. Step 6: Final answer
   x = 61,311.43