Finding the Third Proportional to 78,928.50 and 120,362.63

Step by Step Solution

1. Step 1: Write the proportion equation
   78,928.50 : 120,362.63 = 120,362.63 : x
2. Step 2: Convert to fraction form
   78,928.50/120,362.63 = 120,362.63/x
3. Step 3: Cross multiply
   78,928.50x = 120,362.63 × 120,362.63
4. Step 4: Simplify right side
   78,928.50x = 14,487,161,496.89
5. Step 5: Solve for x
   x = 14,487,161,496.89/78,928.50
6. Step 6: Final answer
   x = 183,547.91