Finding the Third Proportional to 31,484 and 64,426

Step by Step Solution

1. Step 1: Write the proportion equation
   31,484 : 64,426 = 64,426 : x
2. Step 2: Convert to fraction form
   31,484/64,426 = 64,426/x
3. Step 3: Cross multiply
   31,484x = 64,426 × 64,426
4. Step 4: Simplify right side
   31,484x = 4,150,709,476
5. Step 5: Solve for x
   x = 4,150,709,476/31,484
6. Step 6: Final answer
   x = 131,835.52