Finding the Third Proportional to 65,959.31 and 142,181.58

Step by Step Solution

1. Step 1: Write the proportion equation
   65,959.31 : 142,181.58 = 142,181.58 : x
2. Step 2: Convert to fraction form
   65,959.31/142,181.58 = 142,181.58/x
3. Step 3: Cross multiply
   65,959.31x = 142,181.58 × 142,181.58
4. Step 4: Simplify right side
   65,959.31x = 20,215,601,158.12
5. Step 5: Solve for x
   x = 20,215,601,158.12/65,959.31
6. Step 6: Final answer
   x = 306,485.93