Finding the Third Proportional to 31,223.60 and 47,612.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,223.60 : 47,612.81 = 47,612.81 : x
2. Step 2: Convert to fraction form
   31,223.60/47,612.81 = 47,612.81/x
3. Step 3: Cross multiply
   31,223.60x = 47,612.81 × 47,612.81
4. Step 4: Simplify right side
   31,223.60x = 2,266,979,914.16
5. Step 5: Solve for x
   x = 2,266,979,914.16/31,223.60
6. Step 6: Final answer
   x = 72,604.69