Finding the Third Proportional to 401,800.50 and 607,887

Step by Step Solution

1. Step 1: Write the proportion equation
   401,800.50 : 607,887 = 607,887 : x
2. Step 2: Convert to fraction form
   401,800.50/607,887 = 607,887/x
3. Step 3: Cross multiply
   401,800.50x = 607,887 × 607,887
4. Step 4: Simplify right side
   401,800.50x = 369,526,604,769
5. Step 5: Solve for x
   x = 369,526,604,769/401,800.50
6. Step 6: Final answer
   x = 919,676.82