Finding the Third Proportional to 190,390.50 and 423,333

Step by Step Solution

1. Step 1: Write the proportion equation
   190,390.50 : 423,333 = 423,333 : x
2. Step 2: Convert to fraction form
   190,390.50/423,333 = 423,333/x
3. Step 3: Cross multiply
   190,390.50x = 423,333 × 423,333
4. Step 4: Simplify right side
   190,390.50x = 179,210,828,889
5. Step 5: Solve for x
   x = 179,210,828,889/190,390.50
6. Step 6: Final answer
   x = 941,280.31