Finding the Third Proportional to 140,748 and 304,986

Step by Step Solution

1. Step 1: Write the proportion equation
   140,748 : 304,986 = 304,986 : x
2. Step 2: Convert to fraction form
   140,748/304,986 = 304,986/x
3. Step 3: Cross multiply
   140,748x = 304,986 × 304,986
4. Step 4: Simplify right side
   140,748x = 93,016,460,196
5. Step 5: Solve for x
   x = 93,016,460,196/140,748
6. Step 6: Final answer
   x = 660,872.34