Finding the Third Proportional to 70,688,371.50 and 109,841,215.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,688,371.50 : 109,841,215.50 = 109,841,215.50 : x
2. Step 2: Convert to fraction form
   70,688,371.50/109,841,215.50 = 109,841,215.50/x
3. Step 3: Cross multiply
   70,688,371.50x = 109,841,215.50 × 109,841,215.50
4. Step 4: Simplify right side
   70,688,371.50x = 12,065,092,622,517,440
5. Step 5: Solve for x
   x = 12,065,092,622,517,440/70,688,371.50
6. Step 6: Final answer
   x = 170,680,019.45