Finding the Third Proportional to 130,018.50 and 206,871

Step by Step Solution

1. Step 1: Write the proportion equation
   130,018.50 : 206,871 = 206,871 : x
2. Step 2: Convert to fraction form
   130,018.50/206,871 = 206,871/x
3. Step 3: Cross multiply
   130,018.50x = 206,871 × 206,871
4. Step 4: Simplify right side
   130,018.50x = 42,795,610,641
5. Step 5: Solve for x
   x = 42,795,610,641/130,018.50
6. Step 6: Final answer
   x = 329,150.16