Finding the Third Proportional to 553,832 and 1,210,168

Step by Step Solution

1. Step 1: Write the proportion equation
   553,832 : 1,210,168 = 1,210,168 : x
2. Step 2: Convert to fraction form
   553,832/1,210,168 = 1,210,168/x
3. Step 3: Cross multiply
   553,832x = 1,210,168 × 1,210,168
4. Step 4: Simplify right side
   553,832x = 1,464,506,588,224
5. Step 5: Solve for x
   x = 1,464,506,588,224/553,832
6. Step 6: Final answer
   x = 2,644,315.58