Finding the Third Proportional to 250,345.50 and 556,666.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,345.50 : 556,666.50 = 556,666.50 : x
2. Step 2: Convert to fraction form
   250,345.50/556,666.50 = 556,666.50/x
3. Step 3: Cross multiply
   250,345.50x = 556,666.50 × 556,666.50
4. Step 4: Simplify right side
   250,345.50x = 309,877,592,222.25
5. Step 5: Solve for x
   x = 309,877,592,222.25/250,345.50
6. Step 6: Final answer
   x = 1,237,799.73