Finding the Third Proportional to 402,278 and 881,374.50

Step by Step Solution

1. Step 1: Write the proportion equation
   402,278 : 881,374.50 = 881,374.50 : x
2. Step 2: Convert to fraction form
   402,278/881,374.50 = 881,374.50/x
3. Step 3: Cross multiply
   402,278x = 881,374.50 × 881,374.50
4. Step 4: Simplify right side
   402,278x = 776,821,009,250.25
5. Step 5: Solve for x
   x = 776,821,009,250.25/402,278
6. Step 6: Final answer
   x = 1,931,055.16