Finding the Third Proportional to 12,402 and 29,270.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,402 : 29,270.25 = 29,270.25 : x
2. Step 2: Convert to fraction form
   12,402/29,270.25 = 29,270.25/x
3. Step 3: Cross multiply
   12,402x = 29,270.25 × 29,270.25
4. Step 4: Simplify right side
   12,402x = 856,747,535.06
5. Step 5: Solve for x
   x = 856,747,535.06/12,402
6. Step 6: Final answer
   x = 69,081.40