Finding the Third Proportional to 42,770,965 and 87,809,345

Step by Step Solution

1. Step 1: Write the proportion equation
   42,770,965 : 87,809,345 = 87,809,345 : x
2. Step 2: Convert to fraction form
   42,770,965/87,809,345 = 87,809,345/x
3. Step 3: Cross multiply
   42,770,965x = 87,809,345 × 87,809,345
4. Step 4: Simplify right side
   42,770,965x = 7,710,481,069,329,025
5. Step 5: Solve for x
   x = 7,710,481,069,329,025/42,770,965
6. Step 6: Final answer
   x = 180,273,722.36