Finding the Third Proportional to 90,784,772 and 188,029,310

Step by Step Solution

1. Step 1: Write the proportion equation
   90,784,772 : 188,029,310 = 188,029,310 : x
2. Step 2: Convert to fraction form
   90,784,772/188,029,310 = 188,029,310/x
3. Step 3: Cross multiply
   90,784,772x = 188,029,310 × 188,029,310
4. Step 4: Simplify right side
   90,784,772x = 35,355,021,419,076,100
5. Step 5: Solve for x
   x = 35,355,021,419,076,100/90,784,772
6. Step 6: Final answer
   x = 389,437,794.91