Finding the Third Proportional to 190,391.50 and 413,558

Step by Step Solution

1. Step 1: Write the proportion equation
   190,391.50 : 413,558 = 413,558 : x
2. Step 2: Convert to fraction form
   190,391.50/413,558 = 413,558/x
3. Step 3: Cross multiply
   190,391.50x = 413,558 × 413,558
4. Step 4: Simplify right side
   190,391.50x = 171,030,219,364
5. Step 5: Solve for x
   x = 171,030,219,364/190,391.50
6. Step 6: Final answer
   x = 898,308.06