Finding the Third Proportional to 1,552,138 and 2,318,648

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552,138 : 2,318,648 = 2,318,648 : x
2. Step 2: Convert to fraction form
   1,552,138/2,318,648 = 2,318,648/x
3. Step 3: Cross multiply
   1,552,138x = 2,318,648 × 2,318,648
4. Step 4: Simplify right side
   1,552,138x = 5,376,128,547,904
5. Step 5: Solve for x
   x = 5,376,128,547,904/1,552,138
6. Step 6: Final answer
   x = 3,463,692.37