Finding the Third Proportional to 1,086,210 and 1,519,308

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086,210 : 1,519,308 = 1,519,308 : x
2. Step 2: Convert to fraction form
   1,086,210/1,519,308 = 1,519,308/x
3. Step 3: Cross multiply
   1,086,210x = 1,519,308 × 1,519,308
4. Step 4: Simplify right side
   1,086,210x = 2,308,296,798,864
5. Step 5: Solve for x
   x = 2,308,296,798,864/1,086,210
6. Step 6: Final answer
   x = 2,125,092.57