Finding the Third Proportional to 446,221.50 and 916,200

Step by Step Solution

1. Step 1: Write the proportion equation
   446,221.50 : 916,200 = 916,200 : x
2. Step 2: Convert to fraction form
   446,221.50/916,200 = 916,200/x
3. Step 3: Cross multiply
   446,221.50x = 916,200 × 916,200
4. Step 4: Simplify right side
   446,221.50x = 839,422,440,000
5. Step 5: Solve for x
   x = 839,422,440,000/446,221.50
6. Step 6: Final answer
   x = 1,881,178.83