Finding the Third Proportional to 286,155 and 455,500.50

Step by Step Solution

1. Step 1: Write the proportion equation
   286,155 : 455,500.50 = 455,500.50 : x
2. Step 2: Convert to fraction form
   286,155/455,500.50 = 455,500.50/x
3. Step 3: Cross multiply
   286,155x = 455,500.50 × 455,500.50
4. Step 4: Simplify right side
   286,155x = 207,480,705,500.25
5. Step 5: Solve for x
   x = 207,480,705,500.25/286,155
6. Step 6: Final answer
   x = 725,064.06