Finding the Third Proportional to 31,346.44 and 68,405.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,346.44 : 68,405.06 = 68,405.06 : x
2. Step 2: Convert to fraction form
   31,346.44/68,405.06 = 68,405.06/x
3. Step 3: Cross multiply
   31,346.44x = 68,405.06 × 68,405.06
4. Step 4: Simplify right side
   31,346.44x = 4,679,252,575.63
5. Step 5: Solve for x
   x = 4,679,252,575.63/31,346.44
6. Step 6: Final answer
   x = 149,275.42