Finding the Third Proportional to 73,172 and 109,446

Step by Step Solution

1. Step 1: Write the proportion equation
   73,172 : 109,446 = 109,446 : x
2. Step 2: Convert to fraction form
   73,172/109,446 = 109,446/x
3. Step 3: Cross multiply
   73,172x = 109,446 × 109,446
4. Step 4: Simplify right side
   73,172x = 11,978,426,916
5. Step 5: Solve for x
   x = 11,978,426,916/73,172
6. Step 6: Final answer
   x = 163,702.33