Finding the Third Proportional to 74,070.56 and 105,607.69

Step by Step Solution

1. Step 1: Write the proportion equation
   74,070.56 : 105,607.69 = 105,607.69 : x
2. Step 2: Convert to fraction form
   74,070.56/105,607.69 = 105,607.69/x
3. Step 3: Cross multiply
   74,070.56x = 105,607.69 × 105,607.69
4. Step 4: Simplify right side
   74,070.56x = 11,152,983,659.10
5. Step 5: Solve for x
   x = 11,152,983,659.10/74,070.56
6. Step 6: Final answer
   x = 150,572.42