Finding the Third Proportional to 1,356,546 and 2,159,358

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356,546 : 2,159,358 = 2,159,358 : x
2. Step 2: Convert to fraction form
   1,356,546/2,159,358 = 2,159,358/x
3. Step 3: Cross multiply
   1,356,546x = 2,159,358 × 2,159,358
4. Step 4: Simplify right side
   1,356,546x = 4,662,826,972,164
5. Step 5: Solve for x
   x = 4,662,826,972,164/1,356,546
6. Step 6: Final answer
   x = 3,437,278.92