Finding the Third Proportional to 209,088 and 445,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   209,088 : 445,147.50 = 445,147.50 : x
2. Step 2: Convert to fraction form
   209,088/445,147.50 = 445,147.50/x
3. Step 3: Cross multiply
   209,088x = 445,147.50 × 445,147.50
4. Step 4: Simplify right side
   209,088x = 198,156,296,756.25
5. Step 5: Solve for x
   x = 198,156,296,756.25/209,088
6. Step 6: Final answer
   x = 947,717.21