Finding the Third Proportional to 737,217 and 990,661.50

Step by Step Solution

1. Step 1: Write the proportion equation
   737,217 : 990,661.50 = 990,661.50 : x
2. Step 2: Convert to fraction form
   737,217/990,661.50 = 990,661.50/x
3. Step 3: Cross multiply
   737,217x = 990,661.50 × 990,661.50
4. Step 4: Simplify right side
   737,217x = 981,410,207,582.25
5. Step 5: Solve for x
   x = 981,410,207,582.25/737,217
6. Step 6: Final answer
   x = 1,331,236.54