Finding the Third Proportional to 316,300.50 and 683,118

Step by Step Solution

1. Step 1: Write the proportion equation
   316,300.50 : 683,118 = 683,118 : x
2. Step 2: Convert to fraction form
   316,300.50/683,118 = 683,118/x
3. Step 3: Cross multiply
   316,300.50x = 683,118 × 683,118
4. Step 4: Simplify right side
   316,300.50x = 466,650,201,924
5. Step 5: Solve for x
   x = 466,650,201,924/316,300.50
6. Step 6: Final answer
   x = 1,475,338.17