Finding the Third Proportional to 9,402 and 21,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,402 : 21,031.50 = 21,031.50 : x
2. Step 2: Convert to fraction form
   9,402/21,031.50 = 21,031.50/x
3. Step 3: Cross multiply
   9,402x = 21,031.50 × 21,031.50
4. Step 4: Simplify right side
   9,402x = 442,323,992.25
5. Step 5: Solve for x
   x = 442,323,992.25/9,402
6. Step 6: Final answer
   x = 47,045.73