Finding the Third Proportional to 762,907.50 and 1,116,985.50

Step by Step Solution

1. Step 1: Write the proportion equation
   762,907.50 : 1,116,985.50 = 1,116,985.50 : x
2. Step 2: Convert to fraction form
   762,907.50/1,116,985.50 = 1,116,985.50/x
3. Step 3: Cross multiply
   762,907.50x = 1,116,985.50 × 1,116,985.50
4. Step 4: Simplify right side
   762,907.50x = 1,247,656,607,210.25
5. Step 5: Solve for x
   x = 1,247,656,607,210.25/762,907.50
6. Step 6: Final answer
   x = 1,635,396.96