Finding the Third Proportional to 196,159.50 and 415,860

Step by Step Solution

1. Step 1: Write the proportion equation
   196,159.50 : 415,860 = 415,860 : x
2. Step 2: Convert to fraction form
   196,159.50/415,860 = 415,860/x
3. Step 3: Cross multiply
   196,159.50x = 415,860 × 415,860
4. Step 4: Simplify right side
   196,159.50x = 172,939,539,600
5. Step 5: Solve for x
   x = 172,939,539,600/196,159.50
6. Step 6: Final answer
   x = 881,627.14