Finding the Third Proportional to 111,312 and 162,972

Step by Step Solution

1. Step 1: Write the proportion equation
   111,312 : 162,972 = 162,972 : x
2. Step 2: Convert to fraction form
   111,312/162,972 = 162,972/x
3. Step 3: Cross multiply
   111,312x = 162,972 × 162,972
4. Step 4: Simplify right side
   111,312x = 26,559,872,784
5. Step 5: Solve for x
   x = 26,559,872,784/111,312
6. Step 6: Final answer
   x = 238,607.45