Finding the Third Proportional to 2,155,356 and 3,138,264

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,356 : 3,138,264 = 3,138,264 : x
2. Step 2: Convert to fraction form
   2,155,356/3,138,264 = 3,138,264/x
3. Step 3: Cross multiply
   2,155,356x = 3,138,264 × 3,138,264
4. Step 4: Simplify right side
   2,155,356x = 9,848,700,933,696
5. Step 5: Solve for x
   x = 9,848,700,933,696/2,155,356
6. Step 6: Final answer
   x = 4,569,407.99