Finding the Third Proportional to 5,186,418 and 7,611,472

Step by Step Solution

1. Step 1: Write the proportion equation
   5,186,418 : 7,611,472 = 7,611,472 : x
2. Step 2: Convert to fraction form
   5,186,418/7,611,472 = 7,611,472/x
3. Step 3: Cross multiply
   5,186,418x = 7,611,472 × 7,611,472
4. Step 4: Simplify right side
   5,186,418x = 57,934,506,006,784
5. Step 5: Solve for x
   x = 57,934,506,006,784/5,186,418
6. Step 6: Final answer
   x = 11,170,427.45