Finding the Third Proportional to 5,085,666 and 7,680,342

Step by Step Solution

1. Step 1: Write the proportion equation
   5,085,666 : 7,680,342 = 7,680,342 : x
2. Step 2: Convert to fraction form
   5,085,666/7,680,342 = 7,680,342/x
3. Step 3: Cross multiply
   5,085,666x = 7,680,342 × 7,680,342
4. Step 4: Simplify right side
   5,085,666x = 58,987,653,236,964
5. Step 5: Solve for x
   x = 58,987,653,236,964/5,085,666
6. Step 6: Final answer
   x = 11,598,805.98