Finding the Third Proportional to 405,324 and 938,344.50

Step by Step Solution

1. Step 1: Write the proportion equation
   405,324 : 938,344.50 = 938,344.50 : x
2. Step 2: Convert to fraction form
   405,324/938,344.50 = 938,344.50/x
3. Step 3: Cross multiply
   405,324x = 938,344.50 × 938,344.50
4. Step 4: Simplify right side
   405,324x = 880,490,400,680.25
5. Step 5: Solve for x
   x = 880,490,400,680.25/405,324
6. Step 6: Final answer
   x = 2,172,312.52