Finding the Third Proportional to 1,914,221 and 4,205,803

Step by Step Solution

1. Step 1: Write the proportion equation
   1,914,221 : 4,205,803 = 4,205,803 : x
2. Step 2: Convert to fraction form
   1,914,221/4,205,803 = 4,205,803/x
3. Step 3: Cross multiply
   1,914,221x = 4,205,803 × 4,205,803
4. Step 4: Simplify right side
   1,914,221x = 17,688,778,874,809
5. Step 5: Solve for x
   x = 17,688,778,874,809/1,914,221
6. Step 6: Final answer
   x = 9,240,719.27