Finding the Third Proportional to 2,158,360 and 4,662,536

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,360 : 4,662,536 = 4,662,536 : x
2. Step 2: Convert to fraction form
   2,158,360/4,662,536 = 4,662,536/x
3. Step 3: Cross multiply
   2,158,360x = 4,662,536 × 4,662,536
4. Step 4: Simplify right side
   2,158,360x = 21,739,241,951,296
5. Step 5: Solve for x
   x = 21,739,241,951,296/2,158,360
6. Step 6: Final answer
   x = 10,072,111.21