Finding the Third Proportional to 1,242,657 and 2,662,260

Step by Step Solution

1. Step 1: Write the proportion equation
   1,242,657 : 2,662,260 = 2,662,260 : x
2. Step 2: Convert to fraction form
   1,242,657/2,662,260 = 2,662,260/x
3. Step 3: Cross multiply
   1,242,657x = 2,662,260 × 2,662,260
4. Step 4: Simplify right side
   1,242,657x = 7,087,628,307,600
5. Step 5: Solve for x
   x = 7,087,628,307,600/1,242,657
6. Step 6: Final answer
   x = 5,703,607.92