Finding the Third Proportional to 515,172 and 1,106,520

Step by Step Solution

1. Step 1: Write the proportion equation
   515,172 : 1,106,520 = 1,106,520 : x
2. Step 2: Convert to fraction form
   515,172/1,106,520 = 1,106,520/x
3. Step 3: Cross multiply
   515,172x = 1,106,520 × 1,106,520
4. Step 4: Simplify right side
   515,172x = 1,224,386,510,400
5. Step 5: Solve for x
   x = 1,224,386,510,400/515,172
6. Step 6: Final answer
   x = 2,376,655.78