Finding the Third Proportional to 190,404.56 and 418,174.88

Step by Step Solution

1. Step 1: Write the proportion equation
   190,404.56 : 418,174.88 = 418,174.88 : x
2. Step 2: Convert to fraction form
   190,404.56/418,174.88 = 418,174.88/x
3. Step 3: Cross multiply
   190,404.56x = 418,174.88 × 418,174.88
4. Step 4: Simplify right side
   190,404.56x = 174,870,226,081.27
5. Step 5: Solve for x
   x = 174,870,226,081.27/190,404.56
6. Step 6: Final answer
   x = 918,414.05