Finding the Third Proportional to 4,869,906 and 7,710,963

Step by Step Solution

1. Step 1: Write the proportion equation
   4,869,906 : 7,710,963 = 7,710,963 : x
2. Step 2: Convert to fraction form
   4,869,906/7,710,963 = 7,710,963/x
3. Step 3: Cross multiply
   4,869,906x = 7,710,963 × 7,710,963
4. Step 4: Simplify right side
   4,869,906x = 59,458,950,387,369
5. Step 5: Solve for x
   x = 59,458,950,387,369/4,869,906
6. Step 6: Final answer
   x = 12,209,465.72