Finding the Third Proportional to 1,916,529 and 4,221,930

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916,529 : 4,221,930 = 4,221,930 : x
2. Step 2: Convert to fraction form
   1,916,529/4,221,930 = 4,221,930/x
3. Step 3: Cross multiply
   1,916,529x = 4,221,930 × 4,221,930
4. Step 4: Simplify right side
   1,916,529x = 17,824,692,924,900
5. Step 5: Solve for x
   x = 17,824,692,924,900/1,916,529
6. Step 6: Final answer
   x = 9,300,507.81