Finding the Third Proportional to 2,151,509 and 4,681,541

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151,509 : 4,681,541 = 4,681,541 : x
2. Step 2: Convert to fraction form
   2,151,509/4,681,541 = 4,681,541/x
3. Step 3: Cross multiply
   2,151,509x = 4,681,541 × 4,681,541
4. Step 4: Simplify right side
   2,151,509x = 21,916,826,134,681
5. Step 5: Solve for x
   x = 21,916,826,134,681/2,151,509
6. Step 6: Final answer
   x = 10,186,722.96