Finding the Third Proportional to 67,340 and 146,470

Step by Step Solution

1. Step 1: Write the proportion equation
   67,340 : 146,470 = 146,470 : x
2. Step 2: Convert to fraction form
   67,340/146,470 = 146,470/x
3. Step 3: Cross multiply
   67,340x = 146,470 × 146,470
4. Step 4: Simplify right side
   67,340x = 21,453,460,900
5. Step 5: Solve for x
   x = 21,453,460,900/67,340
6. Step 6: Final answer
   x = 318,584.21