Finding the Third Proportional to 156,056 and 336,988.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,056 : 336,988.50 = 336,988.50 : x
2. Step 2: Convert to fraction form
   156,056/336,988.50 = 336,988.50/x
3. Step 3: Cross multiply
   156,056x = 336,988.50 × 336,988.50
4. Step 4: Simplify right side
   156,056x = 113,561,249,132.25
5. Step 5: Solve for x
   x = 113,561,249,132.25/156,056
6. Step 6: Final answer
   x = 727,695.50