Finding the Third Proportional to 405,246 and 881,842.50

Step by Step Solution

1. Step 1: Write the proportion equation
   405,246 : 881,842.50 = 881,842.50 : x
2. Step 2: Convert to fraction form
   405,246/881,842.50 = 881,842.50/x
3. Step 3: Cross multiply
   405,246x = 881,842.50 × 881,842.50
4. Step 4: Simplify right side
   405,246x = 777,646,194,806.25
5. Step 5: Solve for x
   x = 777,646,194,806.25/405,246
6. Step 6: Final answer
   x = 1,918,948.48