Finding the Third Proportional to 31,235.63 and 68,181.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,235.63 : 68,181.75 = 68,181.75 : x
2. Step 2: Convert to fraction form
   31,235.63/68,181.75 = 68,181.75/x
3. Step 3: Cross multiply
   31,235.63x = 68,181.75 × 68,181.75
4. Step 4: Simplify right side
   31,235.63x = 4,648,751,033.06
5. Step 5: Solve for x
   x = 4,648,751,033.06/31,235.63
6. Step 6: Final answer
   x = 148,828.49