Finding the Third Proportional to 52,145.50 and 78,219.75

Step by Step Solution

1. Step 1: Write the proportion equation
   52,145.50 : 78,219.75 = 78,219.75 : x
2. Step 2: Convert to fraction form
   52,145.50/78,219.75 = 78,219.75/x
3. Step 3: Cross multiply
   52,145.50x = 78,219.75 × 78,219.75
4. Step 4: Simplify right side
   52,145.50x = 6,118,329,290.06
5. Step 5: Solve for x
   x = 6,118,329,290.06/52,145.50
6. Step 6: Final answer
   x = 117,331.88