Finding the Third Proportional to 55,260 and 85,338

Step by Step Solution

1. Step 1: Write the proportion equation
   55,260 : 85,338 = 85,338 : x
2. Step 2: Convert to fraction form
   55,260/85,338 = 85,338/x
3. Step 3: Cross multiply
   55,260x = 85,338 × 85,338
4. Step 4: Simplify right side
   55,260x = 7,282,574,244
5. Step 5: Solve for x
   x = 7,282,574,244/55,260
6. Step 6: Final answer
   x = 131,787.45