Finding the Third Proportional to 90,784,847 and 188,029,470

Step by Step Solution

1. Step 1: Write the proportion equation
   90,784,847 : 188,029,470 = 188,029,470 : x
2. Step 2: Convert to fraction form
   90,784,847/188,029,470 = 188,029,470/x
3. Step 3: Cross multiply
   90,784,847x = 188,029,470 × 188,029,470
4. Step 4: Simplify right side
   90,784,847x = 35,355,081,588,480,900
5. Step 5: Solve for x
   x = 35,355,081,588,480,900/90,784,847
6. Step 6: Final answer
   x = 389,438,135.95