Finding the Third Proportional to 2,859,380 and 4,356,153

Step by Step Solution

1. Step 1: Write the proportion equation
   2,859,380 : 4,356,153 = 4,356,153 : x
2. Step 2: Convert to fraction form
   2,859,380/4,356,153 = 4,356,153/x
3. Step 3: Cross multiply
   2,859,380x = 4,356,153 × 4,356,153
4. Step 4: Simplify right side
   2,859,380x = 18,976,068,959,409
5. Step 5: Solve for x
   x = 18,976,068,959,409/2,859,380
6. Step 6: Final answer
   x = 6,636,427.81