Finding the Third Proportional to 188,842,297.50 and 406,382,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   188,842,297.50 : 406,382,404.50 = 406,382,404.50 : x
2. Step 2: Convert to fraction form
   188,842,297.50/406,382,404.50 = 406,382,404.50/x
3. Step 3: Cross multiply
   188,842,297.50x = 406,382,404.50 × 406,382,404.50
4. Step 4: Simplify right side
   188,842,297.50x = 165,146,658,687,201,632
5. Step 5: Solve for x
   x = 165,146,658,687,201,632/188,842,297.50
6. Step 6: Final answer
   x = 874,521,549.85