Finding the Third Proportional to 12,692.81 and 25,693.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,692.81 : 25,693.31 = 25,693.31 : x
2. Step 2: Convert to fraction form
   12,692.81/25,693.31 = 25,693.31/x
3. Step 3: Cross multiply
   12,692.81x = 25,693.31 × 25,693.31
4. Step 4: Simplify right side
   12,692.81x = 660,146,307.22
5. Step 5: Solve for x
   x = 660,146,307.22/12,692.81
6. Step 6: Final answer
   x = 52,009.46