Finding the Third Proportional to 691,386,030 and 1,520,677,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   691,386,030 : 1,520,677,111.50 = 1,520,677,111.50 : x
2. Step 2: Convert to fraction form
   691,386,030/1,520,677,111.50 = 1,520,677,111.50/x
3. Step 3: Cross multiply
   691,386,030x = 1,520,677,111.50 × 1,520,677,111.50
4. Step 4: Simplify right side
   691,386,030x = 2,312,458,877,439,983,616
5. Step 5: Solve for x
   x = 2,312,458,877,439,983,616/691,386,030
6. Step 6: Final answer
   x = 3,344,671,105.72