Finding the Third Proportional to 90,784,860 and 188,029,502

Step by Step Solution

1. Step 1: Write the proportion equation
   90,784,860 : 188,029,502 = 188,029,502 : x
2. Step 2: Convert to fraction form
   90,784,860/188,029,502 = 188,029,502/x
3. Step 3: Cross multiply
   90,784,860x = 188,029,502 × 188,029,502
4. Step 4: Simplify right side
   90,784,860x = 35,355,093,622,368,004
5. Step 5: Solve for x
   x = 35,355,093,622,368,004/90,784,860
6. Step 6: Final answer
   x = 389,438,212.74