Finding the Third Proportional to 455,473 and 679,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   455,473 : 679,528.50 = 679,528.50 : x
2. Step 2: Convert to fraction form
   455,473/679,528.50 = 679,528.50/x
3. Step 3: Cross multiply
   455,473x = 679,528.50 × 679,528.50
4. Step 4: Simplify right side
   455,473x = 461,758,982,312.25
5. Step 5: Solve for x
   x = 461,758,982,312.25/455,473
6. Step 6: Final answer
   x = 1,013,801.00