Finding the Third Proportional to 553,842 and 1,210,194

Step by Step Solution

1. Step 1: Write the proportion equation
   553,842 : 1,210,194 = 1,210,194 : x
2. Step 2: Convert to fraction form
   553,842/1,210,194 = 1,210,194/x
3. Step 3: Cross multiply
   553,842x = 1,210,194 × 1,210,194
4. Step 4: Simplify right side
   553,842x = 1,464,569,517,636
5. Step 5: Solve for x
   x = 1,464,569,517,636/553,842
6. Step 6: Final answer
   x = 2,644,381.46