Finding the Third Proportional to 122,943 and 195,491.25

Step by Step Solution

1. Step 1: Write the proportion equation
   122,943 : 195,491.25 = 195,491.25 : x
2. Step 2: Convert to fraction form
   122,943/195,491.25 = 195,491.25/x
3. Step 3: Cross multiply
   122,943x = 195,491.25 × 195,491.25
4. Step 4: Simplify right side
   122,943x = 38,216,828,826.56
5. Step 5: Solve for x
   x = 38,216,828,826.56/122,943
6. Step 6: Final answer
   x = 310,849.98