Finding the Third Proportional to 519,645 and 1,140,438

Step by Step Solution

1. Step 1: Write the proportion equation
   519,645 : 1,140,438 = 1,140,438 : x
2. Step 2: Convert to fraction form
   519,645/1,140,438 = 1,140,438/x
3. Step 3: Cross multiply
   519,645x = 1,140,438 × 1,140,438
4. Step 4: Simplify right side
   519,645x = 1,300,598,831,844
5. Step 5: Solve for x
   x = 1,300,598,831,844/519,645
6. Step 6: Final answer
   x = 2,502,860.28