Finding the Third Proportional to 190,109 and 415,275.50

Step by Step Solution

1. Step 1: Write the proportion equation
   190,109 : 415,275.50 = 415,275.50 : x
2. Step 2: Convert to fraction form
   190,109/415,275.50 = 415,275.50/x
3. Step 3: Cross multiply
   190,109x = 415,275.50 × 415,275.50
4. Step 4: Simplify right side
   190,109x = 172,453,740,900.25
5. Step 5: Solve for x
   x = 172,453,740,900.25/190,109
6. Step 6: Final answer
   x = 907,130.86