Finding the Third Proportional to 1,248,260 and 2,688,788

Step by Step Solution

1. Step 1: Write the proportion equation
   1,248,260 : 2,688,788 = 2,688,788 : x
2. Step 2: Convert to fraction form
   1,248,260/2,688,788 = 2,688,788/x
3. Step 3: Cross multiply
   1,248,260x = 2,688,788 × 2,688,788
4. Step 4: Simplify right side
   1,248,260x = 7,229,580,908,944
5. Step 5: Solve for x
   x = 7,229,580,908,944/1,248,260
6. Step 6: Final answer
   x = 5,791,726.81