Finding the Third Proportional to 5,256,578 and 7,685,300

Step by Step Solution

1. Step 1: Write the proportion equation
   5,256,578 : 7,685,300 = 7,685,300 : x
2. Step 2: Convert to fraction form
   5,256,578/7,685,300 = 7,685,300/x
3. Step 3: Cross multiply
   5,256,578x = 7,685,300 × 7,685,300
4. Step 4: Simplify right side
   5,256,578x = 59,063,836,090,000
5. Step 5: Solve for x
   x = 59,063,836,090,000/5,256,578
6. Step 6: Final answer
   x = 11,236,176.10