Finding the Third Proportional to 387,091 and 569,250

Step by Step Solution

1. Step 1: Write the proportion equation
   387,091 : 569,250 = 569,250 : x
2. Step 2: Convert to fraction form
   387,091/569,250 = 569,250/x
3. Step 3: Cross multiply
   387,091x = 569,250 × 569,250
4. Step 4: Simplify right side
   387,091x = 324,045,562,500
5. Step 5: Solve for x
   x = 324,045,562,500/387,091
6. Step 6: Final answer
   x = 837,130.19