Finding the Third Proportional to 190,899.56 and 395,011.69

Step by Step Solution

1. Step 1: Write the proportion equation
   190,899.56 : 395,011.69 = 395,011.69 : x
2. Step 2: Convert to fraction form
   190,899.56/395,011.69 = 395,011.69/x
3. Step 3: Cross multiply
   190,899.56x = 395,011.69 × 395,011.69
4. Step 4: Simplify right side
   190,899.56x = 156,034,233,261.60
5. Step 5: Solve for x
   x = 156,034,233,261.60/190,899.56
6. Step 6: Final answer
   x = 817,362.97