Finding the Third Proportional to 57,482 and 83,991

Step by Step Solution

1. Step 1: Write the proportion equation
   57,482 : 83,991 = 83,991 : x
2. Step 2: Convert to fraction form
   57,482/83,991 = 83,991/x
3. Step 3: Cross multiply
   57,482x = 83,991 × 83,991
4. Step 4: Simplify right side
   57,482x = 7,054,488,081
5. Step 5: Solve for x
   x = 7,054,488,081/57,482
6. Step 6: Final answer
   x = 122,725.17