Finding the Third Proportional to 43,166 and 58,318

Step by Step Solution

1. Step 1: Write the proportion equation
   43,166 : 58,318 = 58,318 : x
2. Step 2: Convert to fraction form
   43,166/58,318 = 58,318/x
3. Step 3: Cross multiply
   43,166x = 58,318 × 58,318
4. Step 4: Simplify right side
   43,166x = 3,400,989,124
5. Step 5: Solve for x
   x = 3,400,989,124/43,166
6. Step 6: Final answer
   x = 78,788.61