Finding the Third Proportional to 290,341.50 and 607,290

Step by Step Solution

1. Step 1: Write the proportion equation
   290,341.50 : 607,290 = 607,290 : x
2. Step 2: Convert to fraction form
   290,341.50/607,290 = 607,290/x
3. Step 3: Cross multiply
   290,341.50x = 607,290 × 607,290
4. Step 4: Simplify right side
   290,341.50x = 368,801,144,100
5. Step 5: Solve for x
   x = 368,801,144,100/290,341.50
6. Step 6: Final answer
   x = 1,270,232.28