Finding the Third Proportional to 624,501 and 1,298,090

Step by Step Solution

1. Step 1: Write the proportion equation
   624,501 : 1,298,090 = 1,298,090 : x
2. Step 2: Convert to fraction form
   624,501/1,298,090 = 1,298,090/x
3. Step 3: Cross multiply
   624,501x = 1,298,090 × 1,298,090
4. Step 4: Simplify right side
   624,501x = 1,685,037,648,100
5. Step 5: Solve for x
   x = 1,685,037,648,100/624,501
6. Step 6: Final answer
   x = 2,698,214.49