Finding the Third Proportional to 188,076,456 and 290,499,588

Step by Step Solution

1. Step 1: Write the proportion equation
   188,076,456 : 290,499,588 = 290,499,588 : x
2. Step 2: Convert to fraction form
   188,076,456/290,499,588 = 290,499,588/x
3. Step 3: Cross multiply
   188,076,456x = 290,499,588 × 290,499,588
4. Step 4: Simplify right side
   188,076,456x = 84,390,010,628,169,744
5. Step 5: Solve for x
   x = 84,390,010,628,169,744/188,076,456
6. Step 6: Final answer
   x = 448,700,557.33