Finding the Third Proportional to 90,784,882 and 188,029,540

Step by Step Solution

1. Step 1: Write the proportion equation
   90,784,882 : 188,029,540 = 188,029,540 : x
2. Step 2: Convert to fraction form
   90,784,882/188,029,540 = 188,029,540/x
3. Step 3: Cross multiply
   90,784,882x = 188,029,540 × 188,029,540
4. Step 4: Simplify right side
   90,784,882x = 35,355,107,912,611,600
5. Step 5: Solve for x
   x = 35,355,107,912,611,600/90,784,882
6. Step 6: Final answer
   x = 389,438,275.78