Finding the Third Proportional to 478,412 and 740,770.50

Step by Step Solution

1. Step 1: Write the proportion equation
   478,412 : 740,770.50 = 740,770.50 : x
2. Step 2: Convert to fraction form
   478,412/740,770.50 = 740,770.50/x
3. Step 3: Cross multiply
   478,412x = 740,770.50 × 740,770.50
4. Step 4: Simplify right side
   478,412x = 548,740,933,670.25
5. Step 5: Solve for x
   x = 548,740,933,670.25/478,412
6. Step 6: Final answer
   x = 1,147,004.95