Finding the Third Proportional to 52,269 and 78,890

Step by Step Solution

1. Step 1: Write the proportion equation
   52,269 : 78,890 = 78,890 : x
2. Step 2: Convert to fraction form
   52,269/78,890 = 78,890/x
3. Step 3: Cross multiply
   52,269x = 78,890 × 78,890
4. Step 4: Simplify right side
   52,269x = 6,223,632,100
5. Step 5: Solve for x
   x = 6,223,632,100/52,269
6. Step 6: Final answer
   x = 119,069.28