Finding the Third Proportional to 98,730 and 140,710

Step by Step Solution

1. Step 1: Write the proportion equation
   98,730 : 140,710 = 140,710 : x
2. Step 2: Convert to fraction form
   98,730/140,710 = 140,710/x
3. Step 3: Cross multiply
   98,730x = 140,710 × 140,710
4. Step 4: Simplify right side
   98,730x = 19,799,304,100
5. Step 5: Solve for x
   x = 19,799,304,100/98,730
6. Step 6: Final answer
   x = 200,539.90