Finding the Third Proportional to 190,392.50 and 413,560

Step by Step Solution

1. Step 1: Write the proportion equation
   190,392.50 : 413,560 = 413,560 : x
2. Step 2: Convert to fraction form
   190,392.50/413,560 = 413,560/x
3. Step 3: Cross multiply
   190,392.50x = 413,560 × 413,560
4. Step 4: Simplify right side
   190,392.50x = 171,031,873,600
5. Step 5: Solve for x
   x = 171,031,873,600/190,392.50
6. Step 6: Final answer
   x = 898,312.03