Finding the Third Proportional to 319,370 and 695,439.50

Step by Step Solution

1. Step 1: Write the proportion equation
   319,370 : 695,439.50 = 695,439.50 : x
2. Step 2: Convert to fraction form
   319,370/695,439.50 = 695,439.50/x
3. Step 3: Cross multiply
   319,370x = 695,439.50 × 695,439.50
4. Step 4: Simplify right side
   319,370x = 483,636,098,160.25
5. Step 5: Solve for x
   x = 483,636,098,160.25/319,370
6. Step 6: Final answer
   x = 1,514,344.17