Finding the Third Proportional to 90,784,839 and 188,029,454

Step by Step Solution

1. Step 1: Write the proportion equation
   90,784,839 : 188,029,454 = 188,029,454 : x
2. Step 2: Convert to fraction form
   90,784,839/188,029,454 = 188,029,454/x
3. Step 3: Cross multiply
   90,784,839x = 188,029,454 × 188,029,454
4. Step 4: Simplify right side
   90,784,839x = 35,355,075,571,538,116
5. Step 5: Solve for x
   x = 35,355,075,571,538,116/90,784,839
6. Step 6: Final answer
   x = 389,438,103.99