Finding the Third Proportional to 515,458 and 1,045,412

Step by Step Solution

1. Step 1: Write the proportion equation
   515,458 : 1,045,412 = 1,045,412 : x
2. Step 2: Convert to fraction form
   515,458/1,045,412 = 1,045,412/x
3. Step 3: Cross multiply
   515,458x = 1,045,412 × 1,045,412
4. Step 4: Simplify right side
   515,458x = 1,092,886,249,744
5. Step 5: Solve for x
   x = 1,092,886,249,744/515,458
6. Step 6: Final answer
   x = 2,120,223.66