Finding the Third Proportional to 5,086,480 and 7,681,560

Step by Step Solution

1. Step 1: Write the proportion equation
   5,086,480 : 7,681,560 = 7,681,560 : x
2. Step 2: Convert to fraction form
   5,086,480/7,681,560 = 7,681,560/x
3. Step 3: Cross multiply
   5,086,480x = 7,681,560 × 7,681,560
4. Step 4: Simplify right side
   5,086,480x = 59,006,364,033,600
5. Step 5: Solve for x
   x = 59,006,364,033,600/5,086,480
6. Step 6: Final answer
   x = 11,600,628.34