Finding the Third Proportional to 3,663,247 and 5,385,111

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663,247 : 5,385,111 = 5,385,111 : x
2. Step 2: Convert to fraction form
   3,663,247/5,385,111 = 5,385,111/x
3. Step 3: Cross multiply
   3,663,247x = 5,385,111 × 5,385,111
4. Step 4: Simplify right side
   3,663,247x = 28,999,420,482,321
5. Step 5: Solve for x
   x = 28,999,420,482,321/3,663,247
6. Step 6: Final answer
   x = 7,916,315.90