Finding the Third Proportional to 55,262 and 84,990

Step by Step Solution

1. Step 1: Write the proportion equation
   55,262 : 84,990 = 84,990 : x
2. Step 2: Convert to fraction form
   55,262/84,990 = 84,990/x
3. Step 3: Cross multiply
   55,262x = 84,990 × 84,990
4. Step 4: Simplify right side
   55,262x = 7,223,300,100
5. Step 5: Solve for x
   x = 7,223,300,100/55,262
6. Step 6: Final answer
   x = 130,710.07