Finding the Third Proportional to 30,926 and 67,407.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,926 : 67,407.50 = 67,407.50 : x
2. Step 2: Convert to fraction form
   30,926/67,407.50 = 67,407.50/x
3. Step 3: Cross multiply
   30,926x = 67,407.50 × 67,407.50
4. Step 4: Simplify right side
   30,926x = 4,543,771,056.25
5. Step 5: Solve for x
   x = 4,543,771,056.25/30,926
6. Step 6: Final answer
   x = 146,923.98