Finding the Third Proportional to 463,473 and 620,761.50

Step by Step Solution

1. Step 1: Write the proportion equation
   463,473 : 620,761.50 = 620,761.50 : x
2. Step 2: Convert to fraction form
   463,473/620,761.50 = 620,761.50/x
3. Step 3: Cross multiply
   463,473x = 620,761.50 × 620,761.50
4. Step 4: Simplify right side
   463,473x = 385,344,839,882.25
5. Step 5: Solve for x
   x = 385,344,839,882.25/463,473
6. Step 6: Final answer
   x = 831,428.89