Finding the Third Proportional to 636,308 and 1,372,262

Step by Step Solution

1. Step 1: Write the proportion equation
   636,308 : 1,372,262 = 1,372,262 : x
2. Step 2: Convert to fraction form
   636,308/1,372,262 = 1,372,262/x
3. Step 3: Cross multiply
   636,308x = 1,372,262 × 1,372,262
4. Step 4: Simplify right side
   636,308x = 1,883,102,996,644
5. Step 5: Solve for x
   x = 1,883,102,996,644/636,308
6. Step 6: Final answer
   x = 2,959,420.59