Finding the Third Proportional to 35,984,805.50 and 78,358,890

Step by Step Solution

1. Step 1: Write the proportion equation
   35,984,805.50 : 78,358,890 = 78,358,890 : x
2. Step 2: Convert to fraction form
   35,984,805.50/78,358,890 = 78,358,890/x
3. Step 3: Cross multiply
   35,984,805.50x = 78,358,890 × 78,358,890
4. Step 4: Simplify right side
   35,984,805.50x = 6,140,115,642,032,100
5. Step 5: Solve for x
   x = 6,140,115,642,032,100/35,984,805.50
6. Step 6: Final answer
   x = 170,630,785.88