Finding the Third Proportional to 67,905 and 99,427.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,905 : 99,427.50 = 99,427.50 : x
2. Step 2: Convert to fraction form
   67,905/99,427.50 = 99,427.50/x
3. Step 3: Cross multiply
   67,905x = 99,427.50 × 99,427.50
4. Step 4: Simplify right side
   67,905x = 9,885,827,756.25
5. Step 5: Solve for x
   x = 9,885,827,756.25/67,905
6. Step 6: Final answer
   x = 145,583.21