Finding the Third Proportional to 628,029 and 921,631.50

Step by Step Solution

1. Step 1: Write the proportion equation
   628,029 : 921,631.50 = 921,631.50 : x
2. Step 2: Convert to fraction form
   628,029/921,631.50 = 921,631.50/x
3. Step 3: Cross multiply
   628,029x = 921,631.50 × 921,631.50
4. Step 4: Simplify right side
   628,029x = 849,404,621,792.25
5. Step 5: Solve for x
   x = 849,404,621,792.25/628,029
6. Step 6: Final answer
   x = 1,352,492.67