Finding the Third Proportional to 292,376 and 629,870

Step by Step Solution

1. Step 1: Write the proportion equation
   292,376 : 629,870 = 629,870 : x
2. Step 2: Convert to fraction form
   292,376/629,870 = 629,870/x
3. Step 3: Cross multiply
   292,376x = 629,870 × 629,870
4. Step 4: Simplify right side
   292,376x = 396,736,216,900
5. Step 5: Solve for x
   x = 396,736,216,900/292,376
6. Step 6: Final answer
   x = 1,356,938.38