Finding the Third Proportional to 52,916 and 85,078

Step by Step Solution

1. Step 1: Write the proportion equation
   52,916 : 85,078 = 85,078 : x
2. Step 2: Convert to fraction form
   52,916/85,078 = 85,078/x
3. Step 3: Cross multiply
   52,916x = 85,078 × 85,078
4. Step 4: Simplify right side
   52,916x = 7,238,266,084
5. Step 5: Solve for x
   x = 7,238,266,084/52,916
6. Step 6: Final answer
   x = 136,787.85