Finding the Third Proportional to 553,155 and 1,206,426

Step by Step Solution

1. Step 1: Write the proportion equation
   553,155 : 1,206,426 = 1,206,426 : x
2. Step 2: Convert to fraction form
   553,155/1,206,426 = 1,206,426/x
3. Step 3: Cross multiply
   553,155x = 1,206,426 × 1,206,426
4. Step 4: Simplify right side
   553,155x = 1,455,463,693,476
5. Step 5: Solve for x
   x = 1,455,463,693,476/553,155
6. Step 6: Final answer
   x = 2,631,204.08