Finding the Third Proportional to 31,691.75 and 47,051.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,691.75 : 47,051.50 = 47,051.50 : x
2. Step 2: Convert to fraction form
   31,691.75/47,051.50 = 47,051.50/x
3. Step 3: Cross multiply
   31,691.75x = 47,051.50 × 47,051.50
4. Step 4: Simplify right side
   31,691.75x = 2,213,843,652.25
5. Step 5: Solve for x
   x = 2,213,843,652.25/31,691.75
6. Step 6: Final answer
   x = 69,855.52