Finding the Third Proportional to 397,281 and 868,832.50

Step by Step Solution

1. Step 1: Write the proportion equation
   397,281 : 868,832.50 = 868,832.50 : x
2. Step 2: Convert to fraction form
   397,281/868,832.50 = 868,832.50/x
3. Step 3: Cross multiply
   397,281x = 868,832.50 × 868,832.50
4. Step 4: Simplify right side
   397,281x = 754,869,913,056.25
5. Step 5: Solve for x
   x = 754,869,913,056.25/397,281
6. Step 6: Final answer
   x = 1,900,090.65