Finding the Third Proportional to 556,015 and 920,290.50

Step by Step Solution

1. Step 1: Write the proportion equation
   556,015 : 920,290.50 = 920,290.50 : x
2. Step 2: Convert to fraction form
   556,015/920,290.50 = 920,290.50/x
3. Step 3: Cross multiply
   556,015x = 920,290.50 × 920,290.50
4. Step 4: Simplify right side
   556,015x = 846,934,604,390.25
5. Step 5: Solve for x
   x = 846,934,604,390.25/556,015
6. Step 6: Final answer
   x = 1,523,222.58