Finding the Third Proportional to 1,918,561 and 4,102,970

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918,561 : 4,102,970 = 4,102,970 : x
2. Step 2: Convert to fraction form
   1,918,561/4,102,970 = 4,102,970/x
3. Step 3: Cross multiply
   1,918,561x = 4,102,970 × 4,102,970
4. Step 4: Simplify right side
   1,918,561x = 16,834,362,820,900
5. Step 5: Solve for x
   x = 16,834,362,820,900/1,918,561
6. Step 6: Final answer
   x = 8,774,473.59