Finding the Third Proportional to 303,637.50 and 453,786

Step by Step Solution

1. Step 1: Write the proportion equation
   303,637.50 : 453,786 = 453,786 : x
2. Step 2: Convert to fraction form
   303,637.50/453,786 = 453,786/x
3. Step 3: Cross multiply
   303,637.50x = 453,786 × 453,786
4. Step 4: Simplify right side
   303,637.50x = 205,921,733,796
5. Step 5: Solve for x
   x = 205,921,733,796/303,637.50
6. Step 6: Final answer
   x = 678,182.81