Finding the Third Proportional to 190,513.50 and 413,859

Step by Step Solution

1. Step 1: Write the proportion equation
   190,513.50 : 413,859 = 413,859 : x
2. Step 2: Convert to fraction form
   190,513.50/413,859 = 413,859/x
3. Step 3: Cross multiply
   190,513.50x = 413,859 × 413,859
4. Step 4: Simplify right side
   190,513.50x = 171,279,271,881
5. Step 5: Solve for x
   x = 171,279,271,881/190,513.50
6. Step 6: Final answer
   x = 899,040.08