Finding the Third Proportional to 5,085,612 and 7,680,258

Step by Step Solution

1. Step 1: Write the proportion equation
   5,085,612 : 7,680,258 = 7,680,258 : x
2. Step 2: Convert to fraction form
   5,085,612/7,680,258 = 7,680,258/x
3. Step 3: Cross multiply
   5,085,612x = 7,680,258 × 7,680,258
4. Step 4: Simplify right side
   5,085,612x = 58,986,362,946,564
5. Step 5: Solve for x
   x = 58,986,362,946,564/5,085,612
6. Step 6: Final answer
   x = 11,598,675.43