Finding the Third Proportional to 1,939,820.50 and 4,215,404

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,820.50 : 4,215,404 = 4,215,404 : x
2. Step 2: Convert to fraction form
   1,939,820.50/4,215,404 = 4,215,404/x
3. Step 3: Cross multiply
   1,939,820.50x = 4,215,404 × 4,215,404
4. Step 4: Simplify right side
   1,939,820.50x = 17,769,630,883,216
5. Step 5: Solve for x
   x = 17,769,630,883,216/1,939,820.50
6. Step 6: Final answer
   x = 9,160,451.13