Finding the Third Proportional to 478,308,793.50 and 683,982,389.25

Step by Step Solution

1. Step 1: Write the proportion equation
   478,308,793.50 : 683,982,389.25 = 683,982,389.25 : x
2. Step 2: Convert to fraction form
   478,308,793.50/683,982,389.25 = 683,982,389.25/x
3. Step 3: Cross multiply
   478,308,793.50x = 683,982,389.25 × 683,982,389.25
4. Step 4: Simplify right side
   478,308,793.50x = 467,831,908,804,138,496
5. Step 5: Solve for x
   x = 467,831,908,804,138,496/478,308,793.50
6. Step 6: Final answer
   x = 978,095,981.43