Finding the Third Proportional to 1,921,887 and 2,947,985

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921,887 : 2,947,985 = 2,947,985 : x
2. Step 2: Convert to fraction form
   1,921,887/2,947,985 = 2,947,985/x
3. Step 3: Cross multiply
   1,921,887x = 2,947,985 × 2,947,985
4. Step 4: Simplify right side
   1,921,887x = 8,690,615,560,225
5. Step 5: Solve for x
   x = 8,690,615,560,225/1,921,887
6. Step 6: Final answer
   x = 4,521,918.07