Finding the Third Proportional to 188,076,442 and 290,499,568

Step by Step Solution

1. Step 1: Write the proportion equation
   188,076,442 : 290,499,568 = 290,499,568 : x
2. Step 2: Convert to fraction form
   188,076,442/290,499,568 = 290,499,568/x
3. Step 3: Cross multiply
   188,076,442x = 290,499,568 × 290,499,568
4. Step 4: Simplify right side
   188,076,442x = 84,389,999,008,186,624
5. Step 5: Solve for x
   x = 84,389,999,008,186,624/188,076,442
6. Step 6: Final answer
   x = 448,700,528.95