Finding the Third Proportional to 815,350 and 1,918,468

Step by Step Solution

1. Step 1: Write the proportion equation
   815,350 : 1,918,468 = 1,918,468 : x
2. Step 2: Convert to fraction form
   815,350/1,918,468 = 1,918,468/x
3. Step 3: Cross multiply
   815,350x = 1,918,468 × 1,918,468
4. Step 4: Simplify right side
   815,350x = 3,680,519,467,024
5. Step 5: Solve for x
   x = 3,680,519,467,024/815,350
6. Step 6: Final answer
   x = 4,514,036.26