Finding the Third Proportional to 291,262 and 623,010

Step by Step Solution

1. Step 1: Write the proportion equation
   291,262 : 623,010 = 623,010 : x
2. Step 2: Convert to fraction form
   291,262/623,010 = 623,010/x
3. Step 3: Cross multiply
   291,262x = 623,010 × 623,010
4. Step 4: Simplify right side
   291,262x = 388,141,460,100
5. Step 5: Solve for x
   x = 388,141,460,100/291,262
6. Step 6: Final answer
   x = 1,332,619.63