Finding the Third Proportional to 209,189,736 and 456,045,390

Step by Step Solution

1. Step 1: Write the proportion equation
   209,189,736 : 456,045,390 = 456,045,390 : x
2. Step 2: Convert to fraction form
   209,189,736/456,045,390 = 456,045,390/x
3. Step 3: Cross multiply
   209,189,736x = 456,045,390 × 456,045,390
4. Step 4: Simplify right side
   209,189,736x = 207,977,397,740,252,096
5. Step 5: Solve for x
   x = 207,977,397,740,252,096/209,189,736
6. Step 6: Final answer
   x = 994,204,599.70