Finding the Third Proportional to 621,026 and 1,264,890

Step by Step Solution

1. Step 1: Write the proportion equation
   621,026 : 1,264,890 = 1,264,890 : x
2. Step 2: Convert to fraction form
   621,026/1,264,890 = 1,264,890/x
3. Step 3: Cross multiply
   621,026x = 1,264,890 × 1,264,890
4. Step 4: Simplify right side
   621,026x = 1,599,946,712,100
5. Step 5: Solve for x
   x = 1,599,946,712,100/621,026
6. Step 6: Final answer
   x = 2,576,295.86