Finding the Third Proportional to 155,164,069.50 and 331,408,570.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,164,069.50 : 331,408,570.50 = 331,408,570.50 : x
2. Step 2: Convert to fraction form
   155,164,069.50/331,408,570.50 = 331,408,570.50/x
3. Step 3: Cross multiply
   155,164,069.50x = 331,408,570.50 × 331,408,570.50
4. Step 4: Simplify right side
   155,164,069.50x = 109,831,640,600,853,472
5. Step 5: Solve for x
   x = 109,831,640,600,853,472/155,164,069.50
6. Step 6: Final answer
   x = 707,841,969.82