Finding the Third Proportional to 784,631 and 1,663,419.50

Step by Step Solution

1. Step 1: Write the proportion equation
   784,631 : 1,663,419.50 = 1,663,419.50 : x
2. Step 2: Convert to fraction form
   784,631/1,663,419.50 = 1,663,419.50/x
3. Step 3: Cross multiply
   784,631x = 1,663,419.50 × 1,663,419.50
4. Step 4: Simplify right side
   784,631x = 2,766,964,432,980.25
5. Step 5: Solve for x
   x = 2,766,964,432,980.25/784,631
6. Step 6: Final answer
   x = 3,526,453.11