Finding the Third Proportional to 12,402 and 19,602

Step by Step Solution

1. Step 1: Write the proportion equation
   12,402 : 19,602 = 19,602 : x
2. Step 2: Convert to fraction form
   12,402/19,602 = 19,602/x
3. Step 3: Cross multiply
   12,402x = 19,602 × 19,602
4. Step 4: Simplify right side
   12,402x = 384,238,404
5. Step 5: Solve for x
   x = 384,238,404/12,402
6. Step 6: Final answer
   x = 30,981.97