Finding the Third Proportional to 153,371 and 314,178.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,371 : 314,178.50 = 314,178.50 : x
2. Step 2: Convert to fraction form
   153,371/314,178.50 = 314,178.50/x
3. Step 3: Cross multiply
   153,371x = 314,178.50 × 314,178.50
4. Step 4: Simplify right side
   153,371x = 98,708,129,862.25
5. Step 5: Solve for x
   x = 98,708,129,862.25/153,371
6. Step 6: Final answer
   x = 643,590.57