Finding the Third Proportional to 320,148 and 741,078

Step by Step Solution

1. Step 1: Write the proportion equation
   320,148 : 741,078 = 741,078 : x
2. Step 2: Convert to fraction form
   320,148/741,078 = 741,078/x
3. Step 3: Cross multiply
   320,148x = 741,078 × 741,078
4. Step 4: Simplify right side
   320,148x = 549,196,602,084
5. Step 5: Solve for x
   x = 549,196,602,084/320,148
6. Step 6: Final answer
   x = 1,715,445.99