Finding the Third Proportional to 907,991 and 1,272,523

Step by Step Solution

1. Step 1: Write the proportion equation
   907,991 : 1,272,523 = 1,272,523 : x
2. Step 2: Convert to fraction form
   907,991/1,272,523 = 1,272,523/x
3. Step 3: Cross multiply
   907,991x = 1,272,523 × 1,272,523
4. Step 4: Simplify right side
   907,991x = 1,619,314,785,529
5. Step 5: Solve for x
   x = 1,619,314,785,529/907,991
6. Step 6: Final answer
   x = 1,783,404.00