Finding the Third Proportional to 31,336 and 42,972

Step by Step Solution

1. Step 1: Write the proportion equation
   31,336 : 42,972 = 42,972 : x
2. Step 2: Convert to fraction form
   31,336/42,972 = 42,972/x
3. Step 3: Cross multiply
   31,336x = 42,972 × 42,972
4. Step 4: Simplify right side
   31,336x = 1,846,592,784
5. Step 5: Solve for x
   x = 1,846,592,784/31,336
6. Step 6: Final answer
   x = 58,928.80