Finding the Third Proportional to 34,378.50 and 76,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   34,378.50 : 76,528.50 = 76,528.50 : x
2. Step 2: Convert to fraction form
   34,378.50/76,528.50 = 76,528.50/x
3. Step 3: Cross multiply
   34,378.50x = 76,528.50 × 76,528.50
4. Step 4: Simplify right side
   34,378.50x = 5,856,611,312.25
5. Step 5: Solve for x
   x = 5,856,611,312.25/34,378.50
6. Step 6: Final answer
   x = 170,356.80