Finding the Third Proportional to 64,897 and 140,810

Step by Step Solution

1. Step 1: Write the proportion equation
   64,897 : 140,810 = 140,810 : x
2. Step 2: Convert to fraction form
   64,897/140,810 = 140,810/x
3. Step 3: Cross multiply
   64,897x = 140,810 × 140,810
4. Step 4: Simplify right side
   64,897x = 19,827,456,100
5. Step 5: Solve for x
   x = 19,827,456,100/64,897
6. Step 6: Final answer
   x = 305,521.92