Finding the Third Proportional to 90,784,858 and 188,029,498

Step by Step Solution

1. Step 1: Write the proportion equation
   90,784,858 : 188,029,498 = 188,029,498 : x
2. Step 2: Convert to fraction form
   90,784,858/188,029,498 = 188,029,498/x
3. Step 3: Cross multiply
   90,784,858x = 188,029,498 × 188,029,498
4. Step 4: Simplify right side
   90,784,858x = 35,355,092,118,132,004
5. Step 5: Solve for x
   x = 35,355,092,118,132,004/90,784,858
6. Step 6: Final answer
   x = 389,438,204.75