Finding the Third Proportional to 4,728,386 and 7,488,435

Step by Step Solution

1. Step 1: Write the proportion equation
   4,728,386 : 7,488,435 = 7,488,435 : x
2. Step 2: Convert to fraction form
   4,728,386/7,488,435 = 7,488,435/x
3. Step 3: Cross multiply
   4,728,386x = 7,488,435 × 7,488,435
4. Step 4: Simplify right side
   4,728,386x = 56,076,658,749,225
5. Step 5: Solve for x
   x = 56,076,658,749,225/4,728,386
6. Step 6: Final answer
   x = 11,859,577.19