Finding the Third Proportional to 31,438.50 and 47,374.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,438.50 : 47,374.50 = 47,374.50 : x
2. Step 2: Convert to fraction form
   31,438.50/47,374.50 = 47,374.50/x
3. Step 3: Cross multiply
   31,438.50x = 47,374.50 × 47,374.50
4. Step 4: Simplify right side
   31,438.50x = 2,244,343,250.25
5. Step 5: Solve for x
   x = 2,244,343,250.25/31,438.50
6. Step 6: Final answer
   x = 71,388.37