Finding the Third Proportional to 4,728,384 and 7,488,432

Step by Step Solution

1. Step 1: Write the proportion equation
   4,728,384 : 7,488,432 = 7,488,432 : x
2. Step 2: Convert to fraction form
   4,728,384/7,488,432 = 7,488,432/x
3. Step 3: Cross multiply
   4,728,384x = 7,488,432 × 7,488,432
4. Step 4: Simplify right side
   4,728,384x = 56,076,613,818,624
5. Step 5: Solve for x
   x = 56,076,613,818,624/4,728,384
6. Step 6: Final answer
   x = 11,859,572.70