Finding the Third Proportional to 631,126 and 1,377,900

Step by Step Solution

1. Step 1: Write the proportion equation
   631,126 : 1,377,900 = 1,377,900 : x
2. Step 2: Convert to fraction form
   631,126/1,377,900 = 1,377,900/x
3. Step 3: Cross multiply
   631,126x = 1,377,900 × 1,377,900
4. Step 4: Simplify right side
   631,126x = 1,898,608,410,000
5. Step 5: Solve for x
   x = 1,898,608,410,000/631,126
6. Step 6: Final answer
   x = 3,008,287.43