Finding the Third Proportional to 87,172 and 184,810

Step by Step Solution

1. Step 1: Write the proportion equation
   87,172 : 184,810 = 184,810 : x
2. Step 2: Convert to fraction form
   87,172/184,810 = 184,810/x
3. Step 3: Cross multiply
   87,172x = 184,810 × 184,810
4. Step 4: Simplify right side
   87,172x = 34,154,736,100
5. Step 5: Solve for x
   x = 34,154,736,100/87,172
6. Step 6: Final answer
   x = 391,808.56