Finding the Third Proportional to 286,185 and 453,060.75

Step by Step Solution

1. Step 1: Write the proportion equation
   286,185 : 453,060.75 = 453,060.75 : x
2. Step 2: Convert to fraction form
   286,185/453,060.75 = 453,060.75/x
3. Step 3: Cross multiply
   286,185x = 453,060.75 × 453,060.75
4. Step 4: Simplify right side
   286,185x = 205,264,043,190.56
5. Step 5: Solve for x
   x = 205,264,043,190.56/286,185
6. Step 6: Final answer
   x = 717,242.49