Finding the Third Proportional to 1,968,644 and 4,210,276

Step by Step Solution

1. Step 1: Write the proportion equation
   1,968,644 : 4,210,276 = 4,210,276 : x
2. Step 2: Convert to fraction form
   1,968,644/4,210,276 = 4,210,276/x
3. Step 3: Cross multiply
   1,968,644x = 4,210,276 × 4,210,276
4. Step 4: Simplify right side
   1,968,644x = 17,726,423,996,176
5. Step 5: Solve for x
   x = 17,726,423,996,176/1,968,644
6. Step 6: Final answer
   x = 9,004,382.71