Finding the Third Proportional to 87,429.38 and 188,816.06

Step by Step Solution

1. Step 1: Write the proportion equation
   87,429.38 : 188,816.06 = 188,816.06 : x
2. Step 2: Convert to fraction form
   87,429.38/188,816.06 = 188,816.06/x
3. Step 3: Cross multiply
   87,429.38x = 188,816.06 × 188,816.06
4. Step 4: Simplify right side
   87,429.38x = 35,651,505,458.00
5. Step 5: Solve for x
   x = 35,651,505,458.00/87,429.38
6. Step 6: Final answer
   x = 407,774.91