Finding the Third Proportional to 550,272 and 830,956.50

Step by Step Solution

1. Step 1: Write the proportion equation
   550,272 : 830,956.50 = 830,956.50 : x
2. Step 2: Convert to fraction form
   550,272/830,956.50 = 830,956.50/x
3. Step 3: Cross multiply
   550,272x = 830,956.50 × 830,956.50
4. Step 4: Simplify right side
   550,272x = 690,488,704,892.25
5. Step 5: Solve for x
   x = 690,488,704,892.25/550,272
6. Step 6: Final answer
   x = 1,254,813.45