Finding the Third Proportional to 2,161,212 and 4,657,602

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161,212 : 4,657,602 = 4,657,602 : x
2. Step 2: Convert to fraction form
   2,161,212/4,657,602 = 4,657,602/x
3. Step 3: Cross multiply
   2,161,212x = 4,657,602 × 4,657,602
4. Step 4: Simplify right side
   2,161,212x = 21,693,256,390,404
5. Step 5: Solve for x
   x = 21,693,256,390,404/2,161,212
6. Step 6: Final answer
   x = 10,037,542.08