Finding the Third Proportional to 2,978,685 and 4,602,825

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,685 : 4,602,825 = 4,602,825 : x
2. Step 2: Convert to fraction form
   2,978,685/4,602,825 = 4,602,825/x
3. Step 3: Cross multiply
   2,978,685x = 4,602,825 × 4,602,825
4. Step 4: Simplify right side
   2,978,685x = 21,185,997,980,625
5. Step 5: Solve for x
   x = 21,185,997,980,625/2,978,685
6. Step 6: Final answer
   x = 7,112,533.88