Finding the Third Proportional to 1,939,745 and 4,215,253

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,745 : 4,215,253 = 4,215,253 : x
2. Step 2: Convert to fraction form
   1,939,745/4,215,253 = 4,215,253/x
3. Step 3: Cross multiply
   1,939,745x = 4,215,253 × 4,215,253
4. Step 4: Simplify right side
   1,939,745x = 17,768,357,854,009
5. Step 5: Solve for x
   x = 17,768,357,854,009/1,939,745
6. Step 6: Final answer
   x = 9,160,151.39