Finding the Third Proportional to 476,640 and 706,747.50

Step by Step Solution

1. Step 1: Write the proportion equation
   476,640 : 706,747.50 = 706,747.50 : x
2. Step 2: Convert to fraction form
   476,640/706,747.50 = 706,747.50/x
3. Step 3: Cross multiply
   476,640x = 706,747.50 × 706,747.50
4. Step 4: Simplify right side
   476,640x = 499,492,028,756.25
5. Step 5: Solve for x
   x = 499,492,028,756.25/476,640
6. Step 6: Final answer
   x = 1,047,944.00