Finding the Third Proportional to 1,087,388 and 2,558,658

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087,388 : 2,558,658 = 2,558,658 : x
2. Step 2: Convert to fraction form
   1,087,388/2,558,658 = 2,558,658/x
3. Step 3: Cross multiply
   1,087,388x = 2,558,658 × 2,558,658
4. Step 4: Simplify right side
   1,087,388x = 6,546,730,760,964
5. Step 5: Solve for x
   x = 6,546,730,760,964/1,087,388
6. Step 6: Final answer
   x = 6,020,602.36