Finding the Third Proportional to 31,402.69 and 47,171.53

Step by Step Solution

1. Step 1: Write the proportion equation
   31,402.69 : 47,171.53 = 47,171.53 : x
2. Step 2: Convert to fraction form
   31,402.69/47,171.53 = 47,171.53/x
3. Step 3: Cross multiply
   31,402.69x = 47,171.53 × 47,171.53
4. Step 4: Simplify right side
   31,402.69x = 2,225,153,360.47
5. Step 5: Solve for x
   x = 2,225,153,360.47/31,402.69
6. Step 6: Final answer
   x = 70,858.69