Finding the Third Proportional to 1,691,680 and 3,719,828

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691,680 : 3,719,828 = 3,719,828 : x
2. Step 2: Convert to fraction form
   1,691,680/3,719,828 = 3,719,828/x
3. Step 3: Cross multiply
   1,691,680x = 3,719,828 × 3,719,828
4. Step 4: Simplify right side
   1,691,680x = 13,837,120,349,584
5. Step 5: Solve for x
   x = 13,837,120,349,584/1,691,680
6. Step 6: Final answer
   x = 8,179,514.06