Finding the Third Proportional to 359,370 and 556,368.75

Step by Step Solution

1. Step 1: Write the proportion equation
   359,370 : 556,368.75 = 556,368.75 : x
2. Step 2: Convert to fraction form
   359,370/556,368.75 = 556,368.75/x
3. Step 3: Cross multiply
   359,370x = 556,368.75 × 556,368.75
4. Step 4: Simplify right side
   359,370x = 309,546,185,976.56
5. Step 5: Solve for x
   x = 309,546,185,976.56/359,370
6. Step 6: Final answer
   x = 861,357.89