Finding the Third Proportional to 152,730 and 319,369.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,730 : 319,369.50 = 319,369.50 : x
2. Step 2: Convert to fraction form
   152,730/319,369.50 = 319,369.50/x
3. Step 3: Cross multiply
   152,730x = 319,369.50 × 319,369.50
4. Step 4: Simplify right side
   152,730x = 101,996,877,530.25
5. Step 5: Solve for x
   x = 101,996,877,530.25/152,730
6. Step 6: Final answer
   x = 667,824.77