Finding the Third Proportional to 434,906.50 and 899,646.50

Step by Step Solution

1. Step 1: Write the proportion equation
   434,906.50 : 899,646.50 = 899,646.50 : x
2. Step 2: Convert to fraction form
   434,906.50/899,646.50 = 899,646.50/x
3. Step 3: Cross multiply
   434,906.50x = 899,646.50 × 899,646.50
4. Step 4: Simplify right side
   434,906.50x = 809,363,824,962.25
5. Step 5: Solve for x
   x = 809,363,824,962.25/434,906.50
6. Step 6: Final answer
   x = 1,861,006.50