Finding the Third Proportional to 1,220,564 and 2,658,108

Step by Step Solution

1. Step 1: Write the proportion equation
   1,220,564 : 2,658,108 = 2,658,108 : x
2. Step 2: Convert to fraction form
   1,220,564/2,658,108 = 2,658,108/x
3. Step 3: Cross multiply
   1,220,564x = 2,658,108 × 2,658,108
4. Step 4: Simplify right side
   1,220,564x = 7,065,538,139,664
5. Step 5: Solve for x
   x = 7,065,538,139,664/1,220,564
6. Step 6: Final answer
   x = 5,788,748.59