Finding the Third Proportional to 67,445 and 144,730

Step by Step Solution

1. Step 1: Write the proportion equation
   67,445 : 144,730 = 144,730 : x
2. Step 2: Convert to fraction form
   67,445/144,730 = 144,730/x
3. Step 3: Cross multiply
   67,445x = 144,730 × 144,730
4. Step 4: Simplify right side
   67,445x = 20,946,772,900
5. Step 5: Solve for x
   x = 20,946,772,900/67,445
6. Step 6: Final answer
   x = 310,575.62