Finding the Third Proportional to 209,131.88 and 452,709

Step by Step Solution

1. Step 1: Write the proportion equation
   209,131.88 : 452,709 = 452,709 : x
2. Step 2: Convert to fraction form
   209,131.88/452,709 = 452,709/x
3. Step 3: Cross multiply
   209,131.88x = 452,709 × 452,709
4. Step 4: Simplify right side
   209,131.88x = 204,945,438,681
5. Step 5: Solve for x
   x = 204,945,438,681/209,131.88
6. Step 6: Final answer
   x = 979,981.84