Finding the Third Proportional to 99,450 and 139,047

Step by Step Solution

1. Step 1: Write the proportion equation
   99,450 : 139,047 = 139,047 : x
2. Step 2: Convert to fraction form
   99,450/139,047 = 139,047/x
3. Step 3: Cross multiply
   99,450x = 139,047 × 139,047
4. Step 4: Simplify right side
   99,450x = 19,334,068,209
5. Step 5: Solve for x
   x = 19,334,068,209/99,450
6. Step 6: Final answer
   x = 194,409.94