Finding the Third Proportional to 553,126 and 1,206,364

Step by Step Solution

1. Step 1: Write the proportion equation
   553,126 : 1,206,364 = 1,206,364 : x
2. Step 2: Convert to fraction form
   553,126/1,206,364 = 1,206,364/x
3. Step 3: Cross multiply
   553,126x = 1,206,364 × 1,206,364
4. Step 4: Simplify right side
   553,126x = 1,455,314,100,496
5. Step 5: Solve for x
   x = 1,455,314,100,496/553,126
6. Step 6: Final answer
   x = 2,631,071.58