Finding the Third Proportional to 515,820 and 1,120,191

Step by Step Solution

1. Step 1: Write the proportion equation
   515,820 : 1,120,191 = 1,120,191 : x
2. Step 2: Convert to fraction form
   515,820/1,120,191 = 1,120,191/x
3. Step 3: Cross multiply
   515,820x = 1,120,191 × 1,120,191
4. Step 4: Simplify right side
   515,820x = 1,254,827,876,481
5. Step 5: Solve for x
   x = 1,254,827,876,481/515,820
6. Step 6: Final answer
   x = 2,432,685.58