Finding the Third Proportional to 385,743 and 846,210

Step by Step Solution

1. Step 1: Write the proportion equation
   385,743 : 846,210 = 846,210 : x
2. Step 2: Convert to fraction form
   385,743/846,210 = 846,210/x
3. Step 3: Cross multiply
   385,743x = 846,210 × 846,210
4. Step 4: Simplify right side
   385,743x = 716,071,364,100
5. Step 5: Solve for x
   x = 716,071,364,100/385,743
6. Step 6: Final answer
   x = 1,856,343.12