Finding the Third Proportional to 69,315 and 111,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,315 : 111,628.50 = 111,628.50 : x
2. Step 2: Convert to fraction form
   69,315/111,628.50 = 111,628.50/x
3. Step 3: Cross multiply
   69,315x = 111,628.50 × 111,628.50
4. Step 4: Simplify right side
   69,315x = 12,460,922,012.25
5. Step 5: Solve for x
   x = 12,460,922,012.25/69,315
6. Step 6: Final answer
   x = 179,772.37