Finding the Third Proportional to 50,431.50 and 78,084

Step by Step Solution

1. Step 1: Write the proportion equation
   50,431.50 : 78,084 = 78,084 : x
2. Step 2: Convert to fraction form
   50,431.50/78,084 = 78,084/x
3. Step 3: Cross multiply
   50,431.50x = 78,084 × 78,084
4. Step 4: Simplify right side
   50,431.50x = 6,097,111,056
5. Step 5: Solve for x
   x = 6,097,111,056/50,431.50
6. Step 6: Final answer
   x = 120,898.86