Finding the Third Proportional to 70,422 and 109,213.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,422 : 109,213.50 = 109,213.50 : x
2. Step 2: Convert to fraction form
   70,422/109,213.50 = 109,213.50/x
3. Step 3: Cross multiply
   70,422x = 109,213.50 × 109,213.50
4. Step 4: Simplify right side
   70,422x = 11,927,588,582.25
5. Step 5: Solve for x
   x = 11,927,588,582.25/70,422
6. Step 6: Final answer
   x = 169,373.05