Finding the Third Proportional to 1,071,192 and 1,421,616

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,192 : 1,421,616 = 1,421,616 : x
2. Step 2: Convert to fraction form
   1,071,192/1,421,616 = 1,421,616/x
3. Step 3: Cross multiply
   1,071,192x = 1,421,616 × 1,421,616
4. Step 4: Simplify right side
   1,071,192x = 2,020,992,051,456
5. Step 5: Solve for x
   x = 2,020,992,051,456/1,071,192
6. Step 6: Final answer
   x = 1,886,675.83