Finding the Third Proportional to 190,989.84 and 404,746.31

Step by Step Solution

1. Step 1: Write the proportion equation
   190,989.84 : 404,746.31 = 404,746.31 : x
2. Step 2: Convert to fraction form
   190,989.84/404,746.31 = 404,746.31/x
3. Step 3: Cross multiply
   190,989.84x = 404,746.31 × 404,746.31
4. Step 4: Simplify right side
   190,989.84x = 163,819,577,482.35
5. Step 5: Solve for x
   x = 163,819,577,482.35/190,989.84
6. Step 6: Final answer
   x = 857,739.73