Finding the Third Proportional to 45,015.75 and 78,208.03

Step by Step Solution

1. Step 1: Write the proportion equation
   45,015.75 : 78,208.03 = 78,208.03 : x
2. Step 2: Convert to fraction form
   45,015.75/78,208.03 = 78,208.03/x
3. Step 3: Cross multiply
   45,015.75x = 78,208.03 × 78,208.03
4. Step 4: Simplify right side
   45,015.75x = 6,116,496,152.00
5. Step 5: Solve for x
   x = 6,116,496,152.00/45,015.75
6. Step 6: Final answer
   x = 135,874.58