Finding the Third Proportional to 553,278 and 1,207,068

Step by Step Solution

1. Step 1: Write the proportion equation
   553,278 : 1,207,068 = 1,207,068 : x
2. Step 2: Convert to fraction form
   553,278/1,207,068 = 1,207,068/x
3. Step 3: Cross multiply
   553,278x = 1,207,068 × 1,207,068
4. Step 4: Simplify right side
   553,278x = 1,457,013,156,624
5. Step 5: Solve for x
   x = 1,457,013,156,624/553,278
6. Step 6: Final answer
   x = 2,633,419.65