Finding the Third Proportional to 31,404 and 64,248

Step by Step Solution

1. Step 1: Write the proportion equation
   31,404 : 64,248 = 64,248 : x
2. Step 2: Convert to fraction form
   31,404/64,248 = 64,248/x
3. Step 3: Cross multiply
   31,404x = 64,248 × 64,248
4. Step 4: Simplify right side
   31,404x = 4,127,805,504
5. Step 5: Solve for x
   x = 4,127,805,504/31,404
6. Step 6: Final answer
   x = 131,442.03