Finding the Third Proportional to 31,389.75 and 47,153.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,389.75 : 47,153.25 = 47,153.25 : x
2. Step 2: Convert to fraction form
   31,389.75/47,153.25 = 47,153.25/x
3. Step 3: Cross multiply
   31,389.75x = 47,153.25 × 47,153.25
4. Step 4: Simplify right side
   31,389.75x = 2,223,428,985.56
5. Step 5: Solve for x
   x = 2,223,428,985.56/31,389.75
6. Step 6: Final answer
   x = 70,832.96