Finding the Third Proportional to 72,066.94 and 111,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,066.94 : 111,970.50 = 111,970.50 : x
2. Step 2: Convert to fraction form
   72,066.94/111,970.50 = 111,970.50/x
3. Step 3: Cross multiply
   72,066.94x = 111,970.50 × 111,970.50
4. Step 4: Simplify right side
   72,066.94x = 12,537,392,870.25
5. Step 5: Solve for x
   x = 12,537,392,870.25/72,066.94
6. Step 6: Final answer
   x = 173,968.72