Finding the Third Proportional to 387,085.50 and 569,243.25

Step by Step Solution

1. Step 1: Write the proportion equation
   387,085.50 : 569,243.25 = 569,243.25 : x
2. Step 2: Convert to fraction form
   387,085.50/569,243.25 = 569,243.25/x
3. Step 3: Cross multiply
   387,085.50x = 569,243.25 × 569,243.25
4. Step 4: Simplify right side
   387,085.50x = 324,037,877,670.56
5. Step 5: Solve for x
   x = 324,037,877,670.56/387,085.50
6. Step 6: Final answer
   x = 837,122.23