Finding the Third Proportional to 188,076,720 and 290,499,976

Step by Step Solution

1. Step 1: Write the proportion equation
   188,076,720 : 290,499,976 = 290,499,976 : x
2. Step 2: Convert to fraction form
   188,076,720/290,499,976 = 290,499,976/x
3. Step 3: Cross multiply
   188,076,720x = 290,499,976 × 290,499,976
4. Step 4: Simplify right side
   188,076,720x = 84,390,236,056,000,576
5. Step 5: Solve for x
   x = 84,390,236,056,000,576/188,076,720
6. Step 6: Final answer
   x = 448,701,126.09