Finding the Third Proportional to 72,307.69 and 156,681.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72,307.69 : 156,681.84 = 156,681.84 : x
2. Step 2: Convert to fraction form
   72,307.69/156,681.84 = 156,681.84/x
3. Step 3: Cross multiply
   72,307.69x = 156,681.84 × 156,681.84
4. Step 4: Simplify right side
   72,307.69x = 24,549,200,160.90
5. Step 5: Solve for x
   x = 24,549,200,160.90/72,307.69
6. Step 6: Final answer
   x = 339,510.24