Finding the Third Proportional to 3,590,220 and 7,778,592

Step by Step Solution

1. Step 1: Write the proportion equation
   3,590,220 : 7,778,592 = 7,778,592 : x
2. Step 2: Convert to fraction form
   3,590,220/7,778,592 = 7,778,592/x
3. Step 3: Cross multiply
   3,590,220x = 7,778,592 × 7,778,592
4. Step 4: Simplify right side
   3,590,220x = 60,506,493,502,464
5. Step 5: Solve for x
   x = 60,506,493,502,464/3,590,220
6. Step 6: Final answer
   x = 16,853,143.68