Finding the Third Proportional to 58,452 and 90,406

Step by Step Solution

1. Step 1: Write the proportion equation
   58,452 : 90,406 = 90,406 : x
2. Step 2: Convert to fraction form
   58,452/90,406 = 90,406/x
3. Step 3: Cross multiply
   58,452x = 90,406 × 90,406
4. Step 4: Simplify right side
   58,452x = 8,173,244,836
5. Step 5: Solve for x
   x = 8,173,244,836/58,452
6. Step 6: Final answer
   x = 139,828.32