Finding the Third Proportional to 624,558 and 1,298,181

Step by Step Solution

1. Step 1: Write the proportion equation
   624,558 : 1,298,181 = 1,298,181 : x
2. Step 2: Convert to fraction form
   624,558/1,298,181 = 1,298,181/x
3. Step 3: Cross multiply
   624,558x = 1,298,181 × 1,298,181
4. Step 4: Simplify right side
   624,558x = 1,685,273,908,761
5. Step 5: Solve for x
   x = 1,685,273,908,761/624,558
6. Step 6: Final answer
   x = 2,698,346.52