Finding the Third Proportional to 518,343 and 846,412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,343 : 846,412.50 = 846,412.50 : x
2. Step 2: Convert to fraction form
   518,343/846,412.50 = 846,412.50/x
3. Step 3: Cross multiply
   518,343x = 846,412.50 × 846,412.50
4. Step 4: Simplify right side
   518,343x = 716,414,120,156.25
5. Step 5: Solve for x
   x = 716,414,120,156.25/518,343
6. Step 6: Final answer
   x = 1,382,123.65