Finding the Third Proportional to 920,638 and 1,969,208

Step by Step Solution

1. Step 1: Write the proportion equation
   920,638 : 1,969,208 = 1,969,208 : x
2. Step 2: Convert to fraction form
   920,638/1,969,208 = 1,969,208/x
3. Step 3: Cross multiply
   920,638x = 1,969,208 × 1,969,208
4. Step 4: Simplify right side
   920,638x = 3,877,780,147,264
5. Step 5: Solve for x
   x = 3,877,780,147,264/920,638
6. Step 6: Final answer
   x = 4,212,057.45