Finding the Third Proportional to 1,058,678 and 2,307,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,058,678 : 2,307,688 = 2,307,688 : x
2. Step 2: Convert to fraction form
   1,058,678/2,307,688 = 2,307,688/x
3. Step 3: Cross multiply
   1,058,678x = 2,307,688 × 2,307,688
4. Step 4: Simplify right side
   1,058,678x = 5,325,423,905,344
5. Step 5: Solve for x
   x = 5,325,423,905,344/1,058,678
6. Step 6: Final answer
   x = 5,030,258.40