Finding the Third Proportional to 184,519 and 399,642.50

Step by Step Solution

1. Step 1: Write the proportion equation
   184,519 : 399,642.50 = 399,642.50 : x
2. Step 2: Convert to fraction form
   184,519/399,642.50 = 399,642.50/x
3. Step 3: Cross multiply
   184,519x = 399,642.50 × 399,642.50
4. Step 4: Simplify right side
   184,519x = 159,714,127,806.25
5. Step 5: Solve for x
   x = 159,714,127,806.25/184,519
6. Step 6: Final answer
   x = 865,570.09