Finding the Third Proportional to 21,385.90 and 31,372.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,385.90 : 31,372.63 = 31,372.63 : x
2. Step 2: Convert to fraction form
   21,385.90/31,372.63 = 31,372.63/x
3. Step 3: Cross multiply
   21,385.90x = 31,372.63 × 31,372.63
4. Step 4: Simplify right side
   21,385.90x = 984,241,844.49
5. Step 5: Solve for x
   x = 984,241,844.49/21,385.90
6. Step 6: Final answer
   x = 46,022.94