Finding the Third Proportional to 415,939.50 and 851,547

Step by Step Solution

1. Step 1: Write the proportion equation
   415,939.50 : 851,547 = 851,547 : x
2. Step 2: Convert to fraction form
   415,939.50/851,547 = 851,547/x
3. Step 3: Cross multiply
   415,939.50x = 851,547 × 851,547
4. Step 4: Simplify right side
   415,939.50x = 725,132,293,209
5. Step 5: Solve for x
   x = 725,132,293,209/415,939.50
6. Step 6: Final answer
   x = 1,743,360.02