Finding the Third Proportional to 156,074.50 and 342,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,074.50 : 342,528.50 = 342,528.50 : x
2. Step 2: Convert to fraction form
   156,074.50/342,528.50 = 342,528.50/x
3. Step 3: Cross multiply
   156,074.50x = 342,528.50 × 342,528.50
4. Step 4: Simplify right side
   156,074.50x = 117,325,773,312.25
5. Step 5: Solve for x
   x = 117,325,773,312.25/156,074.50
6. Step 6: Final answer
   x = 751,729.29