Finding the Third Proportional to 67,490 and 146,632

Step by Step Solution

1. Step 1: Write the proportion equation
   67,490 : 146,632 = 146,632 : x
2. Step 2: Convert to fraction form
   67,490/146,632 = 146,632/x
3. Step 3: Cross multiply
   67,490x = 146,632 × 146,632
4. Step 4: Simplify right side
   67,490x = 21,500,943,424
5. Step 5: Solve for x
   x = 21,500,943,424/67,490
6. Step 6: Final answer
   x = 318,579.69