Finding the Third Proportional to 35,490 and 55,647

Step by Step Solution

1. Step 1: Write the proportion equation
   35,490 : 55,647 = 55,647 : x
2. Step 2: Convert to fraction form
   35,490/55,647 = 55,647/x
3. Step 3: Cross multiply
   35,490x = 55,647 × 55,647
4. Step 4: Simplify right side
   35,490x = 3,096,588,609
5. Step 5: Solve for x
   x = 3,096,588,609/35,490
6. Step 6: Final answer
   x = 87,252.43