Finding the Third Proportional to 1,243,602 and 2,580,696

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,602 : 2,580,696 = 2,580,696 : x
2. Step 2: Convert to fraction form
   1,243,602/2,580,696 = 2,580,696/x
3. Step 3: Cross multiply
   1,243,602x = 2,580,696 × 2,580,696
4. Step 4: Simplify right side
   1,243,602x = 6,659,991,844,416
5. Step 5: Solve for x
   x = 6,659,991,844,416/1,243,602
6. Step 6: Final answer
   x = 5,355,404.58