Finding the Third Proportional to 92,861 and 139,966.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,861 : 139,966.50 = 139,966.50 : x
2. Step 2: Convert to fraction form
   92,861/139,966.50 = 139,966.50/x
3. Step 3: Cross multiply
   92,861x = 139,966.50 × 139,966.50
4. Step 4: Simplify right side
   92,861x = 19,590,621,122.25
5. Step 5: Solve for x
   x = 19,590,621,122.25/92,861
6. Step 6: Final answer
   x = 210,967.16