Finding the Third Proportional to 207,492 and 319,075.50

Step by Step Solution

1. Step 1: Write the proportion equation
   207,492 : 319,075.50 = 319,075.50 : x
2. Step 2: Convert to fraction form
   207,492/319,075.50 = 319,075.50/x
3. Step 3: Cross multiply
   207,492x = 319,075.50 × 319,075.50
4. Step 4: Simplify right side
   207,492x = 101,809,174,700.25
5. Step 5: Solve for x
   x = 101,809,174,700.25/207,492
6. Step 6: Final answer
   x = 490,665.54