Finding the Third Proportional to 31,881.75 and 70,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,881.75 : 70,054.50 = 70,054.50 : x
2. Step 2: Convert to fraction form
   31,881.75/70,054.50 = 70,054.50/x
3. Step 3: Cross multiply
   31,881.75x = 70,054.50 × 70,054.50
4. Step 4: Simplify right side
   31,881.75x = 4,907,632,970.25
5. Step 5: Solve for x
   x = 4,907,632,970.25/31,881.75
6. Step 6: Final answer
   x = 153,932.36