Finding the Third Proportional to 67,172 and 146,332

Step by Step Solution

1. Step 1: Write the proportion equation
   67,172 : 146,332 = 146,332 : x
2. Step 2: Convert to fraction form
   67,172/146,332 = 146,332/x
3. Step 3: Cross multiply
   67,172x = 146,332 × 146,332
4. Step 4: Simplify right side
   67,172x = 21,413,054,224
5. Step 5: Solve for x
   x = 21,413,054,224/67,172
6. Step 6: Final answer
   x = 318,779.47