Finding the Third Proportional to 30,661,243 and 47,128,510

Step by Step Solution

1. Step 1: Write the proportion equation
   30,661,243 : 47,128,510 = 47,128,510 : x
2. Step 2: Convert to fraction form
   30,661,243/47,128,510 = 47,128,510/x
3. Step 3: Cross multiply
   30,661,243x = 47,128,510 × 47,128,510
4. Step 4: Simplify right side
   30,661,243x = 2,221,096,454,820,100
5. Step 5: Solve for x
   x = 2,221,096,454,820,100/30,661,243
6. Step 6: Final answer
   x = 72,439,869.93