Finding the Third Proportional to 31,797.75 and 69,058.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,797.75 : 69,058.50 = 69,058.50 : x
2. Step 2: Convert to fraction form
   31,797.75/69,058.50 = 69,058.50/x
3. Step 3: Cross multiply
   31,797.75x = 69,058.50 × 69,058.50
4. Step 4: Simplify right side
   31,797.75x = 4,769,076,422.25
5. Step 5: Solve for x
   x = 4,769,076,422.25/31,797.75
6. Step 6: Final answer
   x = 149,981.57