Finding the Third Proportional to 356,846.50 and 784,666.50

Step by Step Solution

1. Step 1: Write the proportion equation
   356,846.50 : 784,666.50 = 784,666.50 : x
2. Step 2: Convert to fraction form
   356,846.50/784,666.50 = 784,666.50/x
3. Step 3: Cross multiply
   356,846.50x = 784,666.50 × 784,666.50
4. Step 4: Simplify right side
   356,846.50x = 615,701,516,222.25
5. Step 5: Solve for x
   x = 615,701,516,222.25/356,846.50
6. Step 6: Final answer
   x = 1,725,395.98