Finding the Third Proportional to 316,947.94 and 692,123.06

Step by Step Solution

1. Step 1: Write the proportion equation
   316,947.94 : 692,123.06 = 692,123.06 : x
2. Step 2: Convert to fraction form
   316,947.94/692,123.06 = 692,123.06/x
3. Step 3: Cross multiply
   316,947.94x = 692,123.06 × 692,123.06
4. Step 4: Simplify right side
   316,947.94x = 479,034,333,644.38
5. Step 5: Solve for x
   x = 479,034,333,644.38/316,947.94
6. Step 6: Final answer
   x = 1,511,397.54