Finding the Third Proportional to 556,445 and 834,787.50

Step by Step Solution

1. Step 1: Write the proportion equation
   556,445 : 834,787.50 = 834,787.50 : x
2. Step 2: Convert to fraction form
   556,445/834,787.50 = 834,787.50/x
3. Step 3: Cross multiply
   556,445x = 834,787.50 × 834,787.50
4. Step 4: Simplify right side
   556,445x = 696,870,170,156.25
5. Step 5: Solve for x
   x = 696,870,170,156.25/556,445
6. Step 6: Final answer
   x = 1,252,361.28