Finding the Third Proportional to 153,670.92 and 314,928

Step by Step Solution

1. Step 1: Write the proportion equation
   153,670.92 : 314,928 = 314,928 : x
2. Step 2: Convert to fraction form
   153,670.92/314,928 = 314,928/x
3. Step 3: Cross multiply
   153,670.92x = 314,928 × 314,928
4. Step 4: Simplify right side
   153,670.92x = 99,179,645,184
5. Step 5: Solve for x
   x = 99,179,645,184/153,670.92
6. Step 6: Final answer
   x = 645,402.81