Finding the Third Proportional to 12,435.75 and 26,311.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,435.75 : 26,311.50 = 26,311.50 : x
2. Step 2: Convert to fraction form
   12,435.75/26,311.50 = 26,311.50/x
3. Step 3: Cross multiply
   12,435.75x = 26,311.50 × 26,311.50
4. Step 4: Simplify right side
   12,435.75x = 692,295,032.25
5. Step 5: Solve for x
   x = 692,295,032.25/12,435.75
6. Step 6: Final answer
   x = 55,669.75