Finding the Third Proportional to 1,960,310 and 4,220,978

Step by Step Solution

1. Step 1: Write the proportion equation
   1,960,310 : 4,220,978 = 4,220,978 : x
2. Step 2: Convert to fraction form
   1,960,310/4,220,978 = 4,220,978/x
3. Step 3: Cross multiply
   1,960,310x = 4,220,978 × 4,220,978
4. Step 4: Simplify right side
   1,960,310x = 17,816,655,276,484
5. Step 5: Solve for x
   x = 17,816,655,276,484/1,960,310
6. Step 6: Final answer
   x = 9,088,692.75