Finding the Third Proportional to 200,529.50 and 445,890

Step by Step Solution

1. Step 1: Write the proportion equation
   200,529.50 : 445,890 = 445,890 : x
2. Step 2: Convert to fraction form
   200,529.50/445,890 = 445,890/x
3. Step 3: Cross multiply
   200,529.50x = 445,890 × 445,890
4. Step 4: Simplify right side
   200,529.50x = 198,817,892,100
5. Step 5: Solve for x
   x = 198,817,892,100/200,529.50
6. Step 6: Final answer
   x = 991,464.56