Finding the Third Proportional to 916,664 and 1,968,736

Step by Step Solution

1. Step 1: Write the proportion equation
   916,664 : 1,968,736 = 1,968,736 : x
2. Step 2: Convert to fraction form
   916,664/1,968,736 = 1,968,736/x
3. Step 3: Cross multiply
   916,664x = 1,968,736 × 1,968,736
4. Step 4: Simplify right side
   916,664x = 3,875,921,437,696
5. Step 5: Solve for x
   x = 3,875,921,437,696/916,664
6. Step 6: Final answer
   x = 4,228,290.23